fix: Add back canvas resize (#31058)

## Description

Added back canvas resizing while switching to side by side.

#### PR fixes following issue(s)
Fixes https://github.com/appsmithorg/appsmith/issues/31057


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

## Testing

#### How Has This Been Tested?
> Please describe the tests that you ran to verify your changes. Also
list any relevant details for your test configuration.
> Delete anything that is not relevant
- [ ] Manual
- [ ] JUnit
- [ ] Jest
- [ ] Cypress
>
>
#### Test Plan
> Add Testsmith test cases links that relate to this PR
>
>
#### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
(copy link from comments dropped on this PR)
>
>
>
## Checklist:
#### Dev activity
- [x] My code follows the style guidelines of this project
- [x] 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
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] 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/Guidelines-for-test-plans#speedbreakers-)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#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


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Refactor**
- Enhanced the `useDynamicAppLayout` hook for improved layout
calculations and control flow, removing dependencies on specific editor
states and modes.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

app/client/src/utils/hooks/useDynamicAppLayout.tsx

@@ -36,12 +36,6 @@ import { ReduxActionTypes } from "@appsmith/constants/ReduxActionConstants";
 import { useLocation } from "react-router";
 import { CANVAS_VIEWPORT } from "constants/componentClassNameConstants";
 import { getLayoutSystemType } from "selectors/layoutSystemSelectors";
-import { getIDEViewMode } from "selectors/ideSelectors";
-import {
-  EditorEntityTab,
-  EditorViewMode,
-} from "@appsmith/entities/IDE/constants";
-import { useCurrentEditorState } from "pages/Editor/IDE/hooks";
 
 const GUTTER_WIDTH = 72;
 export const AUTOLAYOUT_RESIZER_WIDTH_BUFFER = 40;
@@ -73,8 +67,6 @@ export const useDynamicAppLayout = () => {
   const queryParams = new URLSearchParams(search);
   const isEmbed = queryParams.get("embed");
   const isNavbarVisibleInEmbeddedApp = queryParams.get("navbar");
-  const editorMode = useSelector(getIDEViewMode);
-  const { segment } = useCurrentEditorState();
 
   const isPreviewing = isPreviewMode;
 
@@ -171,22 +163,12 @@ export const useDynamicAppLayout = () => {
     if (
       appMode === APP_MODE.EDIT &&
       appLayout?.type === "FLUID" &&
-      editorMode !== EditorViewMode.SplitScreen &&
-      segment === EditorEntityTab.UI &&
       ele &&
       calculatedWidth > ele.clientWidth
     ) {
       calculatedWidth = ele.clientWidth;
     }
 
-    // Reduce the width of the border if splitscreen is enabled.
-    if (
-      editorMode === EditorViewMode.SplitScreen &&
-      appLayout?.type === "FLUID"
-    ) {
-      calculatedWidth -= 1;
-    }
-
     switch (true) {
       case maxWidth < 0:
       case appLayout?.type === "FLUID":