fix: widget columns to have integers after conversion to fixed layout and redirect to home page while restoring if the page does not exist in the restored snapshot (#23144)

## Description
This PR makes a change to make sure the widget's horizontal columns are
integers,
Also adding code to use the page list returned by the application while
restoring snapshot

#### PR fixes following issue(s)
Fixes #23133 
Fixes #23192 

#### Media
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#### Type of change
- Bug fix (non-breaking change which fixes an issue)>

## Testing

#### How Has This Been Tested?
- [ ] Manual
- [ ] Jest

#### Test Plan
> Add Testsmith test cases links that relate to this PR
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#### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
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## Checklist:
#### Dev activity
- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag


#### QA activity:
- [ ] [Speedbreak
features](https://github.com/appsmithorg/TestSmith/wiki/Test-plan-implementation#speedbreaker-features-to-consider-for-every-change)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans/_edit#areas-of-interest)
- [ ] Test plan has been peer reviewed by project stakeholders and other
QA members
- [ ] Manually tested functionality on DP
- [ ] We had an implementation alignment call with stakeholders post QA
Round 2
- [ ] Cypress test cases have been added and approved by SDET/manual QA
- [ ] Added `Test Plan Approved` label after Cypress tests were reviewed
- [ ] Added `Test Plan Approved` label after JUnit tests were reviewed

app/client/src/sagas/SnapshotSagas.ts

@@ -4,6 +4,7 @@ import {
 } from "actions/autoLayoutActions";
 import type { ApiResponse } from "api/ApiResponses";
 import ApplicationApi from "@appsmith/api/ApplicationApi";
+import type { PageDefaultMeta } from "@appsmith/api/ApplicationApi";
 import { ReduxActionTypes } from "@appsmith/constants/ReduxActionConstants";
 import log from "loglevel";
 import type { SnapShotDetails } from "reducers/uiReducers/layoutConversionReducer";
@@ -95,6 +96,20 @@ function* restoreApplicationFromSnapshotSaga() {
       getLogToSentryFromResponse(response),
     );
 
+    // update the pages list temporarily with incomplete data.
+    if (response?.data?.pages) {
+      yield put({
+        type: ReduxActionTypes.FETCH_PAGE_LIST_SUCCESS,
+        payload: {
+          pages: response.data.pages.map((page: PageDefaultMeta) => ({
+            pageId: page.id,
+            isDefault: page.isDefault,
+          })),
+          applicationId,
+        },
+      });
+    }
+
     //update layout positioning type from
     yield call(
       updateApplicationLayoutType,
@@ -103,14 +118,6 @@ function* restoreApplicationFromSnapshotSaga() {
         : AppPositioningTypes.FIXED,
     );
 
-    if (response?.data?.applicationDetail?.appPositioning?.type) {
-      //update layout positioning type from response
-      yield call(
-        updateApplicationLayoutType,
-        response.data.applicationDetail.appPositioning.type,
-      );
-    }
-
     if (isValidResponse) {
       //update conversion form state to success
       yield put(

app/client/src/utils/DSLConversions/autoToFixedLayout.ts

@@ -202,8 +202,8 @@ function processMobileCanvasChildren(
       ...currWidget,
       topRow: getTopRow(currWidget, true),
       bottomRow: getBottomRow(currWidget, true),
-      leftColumn: getLeftColumn(currWidget, true),
-      rightColumn: getRightColumn(currWidget, true),
+      leftColumn: Math.floor(getLeftColumn(currWidget, true)),
+      rightColumn: Math.floor(getRightColumn(currWidget, true)),
     };
 
     currWidgets = convertAutoWidgetToFixed(currWidgets, childId, true);
@@ -261,8 +261,8 @@ function processCanvasChildren(
       ...currWidget,
       topRow: getTopRow(currWidget, false),
       bottomRow: getBottomRow(currWidget, false),
-      leftColumn,
-      rightColumn,
+      leftColumn: Math.floor(leftColumn),
+      rightColumn: Math.floor(rightColumn),
     };
 
     currWidgets = convertAutoWidgetToFixed(currWidgets, childId, false);

app/client/src/utils/DSLConversions/tests/autoToFixedLayout.test.ts

@@ -564,7 +564,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       leftColumn: 0,
       minWidth: 120,
       parentId: "vv54unn046",
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 0,
       type: "BUTTON_WIDGET",
       widgetId: "5c6gd8ynfa",
@@ -696,7 +696,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       minWidth: 120,
       parentId: "0",
       parentRowSpace: 10,
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 18.599999999999998,
       type: "BUTTON_WIDGET",
       widgetId: "n123229jea",
@@ -718,7 +718,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       leftColumn: 0,
       minWidth: 120,
       parentId: "0",
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 13.399999999999999,
       type: "BUTTON_WIDGET",
       widgetId: "p6em4n29z7",
@@ -741,7 +741,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       leftColumn: 0,
       minWidth: 120,
       parentId: "mw6t1nvt67",
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 5.2,
       type: "BUTTON_WIDGET",
       widgetId: "u0cd188upj",
@@ -768,7 +768,7 @@ describe("test Auto to Fixed Conversion methods", () => {
     },
     wixla6nh38: {
       bottomRow: 7,
-      leftColumn: 17.375565610859727,
+      leftColumn: 17,
       minWidth: 450,
       parentId: "vv54unn046",
       rightColumn: 64,
@@ -880,7 +880,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       leftColumn: 0,
       minWidth: 120,
       parentId: "vv54unn046",
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 0,
       type: "BUTTON_WIDGET",
       widgetId: "5c6gd8ynfa",
@@ -1012,7 +1012,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       minWidth: 120,
       parentId: "0",
       parentRowSpace: 10,
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 27.000000000000004,
       type: "BUTTON_WIDGET",
       widgetId: "n123229jea",
@@ -1034,7 +1034,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       leftColumn: 0,
       minWidth: 120,
       parentId: "0",
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 22.200000000000003,
       type: "BUTTON_WIDGET",
       widgetId: "p6em4n29z7",
@@ -1057,7 +1057,7 @@ describe("test Auto to Fixed Conversion methods", () => {
       leftColumn: 0,
       minWidth: 120,
       parentId: "mw6t1nvt67",
-      rightColumn: 17.375565610859727,
+      rightColumn: 17,
       topRow: 4.8,
       type: "BUTTON_WIDGET",
       widgetId: "u0cd188upj",