fix: Anvil editor zone stretch fix in mobile mode (#30592)

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## Description
In this PR, we are making sure zones don't stretch to fill sections in
low resolution screens exclusively on the Appsmith Anvil Editor.

#### PR fixes following issue(s)
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## Testing
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- [ ] JUnit
- [ ] Jest
- [ ] Cypress
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## Checklist:
#### Dev activity
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Enhanced the canvas interaction experience in the Anvil layout system
for better usability.
- **Bug Fixes**
- Fixed an issue with incorrect `minWidth` settings for widgets,
improving responsiveness and layout accuracy on mobile devices.

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

app/client/src/layoutSystems/anvil/canvas/AnvilMainCanvas.tsx

@@ -1,14 +1,18 @@
 import type { BaseWidgetProps } from "widgets/BaseWidgetHOC/withBaseWidgetHOC";
 import { AnvilCanvas } from "./AnvilCanvas";
 import React from "react";
-import { useCanvasActivationStates } from "../canvasArenas/hooks/mainCanvas/useCanvasActivationStates";
 import { useCanvasActivation } from "../canvasArenas/hooks/mainCanvas/useCanvasActivation";
 import { useSelectWidgetListener } from "../common/hooks/useSelectWidgetListener";
 
-export const AnvilMainCanvas = (props: BaseWidgetProps) => {
-  const anvilCanvasActivationStates = useCanvasActivationStates();
-  useCanvasActivation(anvilCanvasActivationStates);
+/**
+ * Anvil Main Canvas is just a wrapper around AnvilCanvas.
+ * Why do we need this?
+ * Because we need to use useCanvasActivation hook which is only needed to be used once and it is also exclusive to edit mode.
+ * checkout useCanvasActivation for more details.
+ */
 
+export const AnvilMainCanvas = (props: BaseWidgetProps) => {
+  useCanvasActivation();
   useSelectWidgetListener();
   return <AnvilCanvas {...props} />;
 };

app/client/src/layoutSystems/anvil/canvasArenas/hooks/mainCanvas/useCanvasActivation.ts

@@ -7,7 +7,7 @@ import { getAnvilLayoutDOMId } from "layoutSystems/common/utils/LayoutElementPos
 import { debounce, uniq } from "lodash";
 import { useEffect, useRef } from "react";
 import { useWidgetDragResize } from "utils/hooks/dragResizeHooks";
-import type { AnvilCanvasActivationStates } from "./useCanvasActivationStates";
+import { useCanvasActivationStates } from "./useCanvasActivationStates";
 import { canActivateCanvasForDraggedWidget } from "../utils";
 import { LayoutComponentTypes } from "layoutSystems/anvil/utils/anvilTypes";
 
@@ -39,16 +39,21 @@ const checkIfMousePositionIsInsideBlock = (
 const MAIN_CANVAS_BUFFER = 20;
 const SECTION_BUFFER = 20;
 
-export const useCanvasActivation = ({
-  activateOverlayWidgetDrop,
-  dragDetails,
-  draggedWidgetTypes,
-  isDragging,
-  isNewWidget,
-  layoutElementPositions,
-  mainCanvasLayoutId,
-  selectedWidgets,
-}: AnvilCanvasActivationStates) => {
+/**
+ * This hook handles the activation and deactivation of the canvas(Drop targets) while dragging.
+ */
+
+export const useCanvasActivation = () => {
+  const {
+    activateOverlayWidgetDrop,
+    dragDetails,
+    draggedWidgetTypes,
+    isDragging,
+    isNewWidget,
+    layoutElementPositions,
+    mainCanvasLayoutId,
+    selectedWidgets,
+  } = useCanvasActivationStates();
   // Getting the main canvas DOM node
   const mainContainerDOMNode = document.getElementById(CANVAS_ART_BOARD);
 

app/client/src/widgets/anvil/ZoneWidget/widget/config/anvilConfig.ts

@@ -7,13 +7,13 @@ export const anvilConfig: AnvilConfig = {
   isLargeWidget: true,
   widgetSize: (props: WidgetProps, isPreviewMode: boolean): SizeConfig => {
     return {
-      minWidth: {
-        base: "100%",
-        [`${MOBILE_BREAKPOINT}px`]:
-          props?.renderMode === RenderModes.CANVAS && !isPreviewMode
-            ? "unset"
-            : "min-content",
-      },
+      minWidth:
+        props?.renderMode === RenderModes.CANVAS && !isPreviewMode
+          ? {}
+          : {
+              base: "100%",
+              [`${MOBILE_BREAKPOINT}px`]: "min-content",
+            },
     };
   },
 };