fix: asset layout cp-13.12.0 (#38537)

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## **Description**

Fix asset page layout from getting shrinked

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## **Changelog**

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CHANGELOG entry: fix: asset page layout

## **Related issues**

Fixes:

## **Manual testing steps**

1. Home screen 
2. Tokens tab
3. click on an asset

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

|Before|After|
|---|---|
|<img width="443" height="407" alt="image"
src="https://github.com/user-attachments/assets/b662ab2a-ab20-4478-8cc7-6bb4942f94bd"
/>|<img width="430" height="383" alt="image"
src="https://github.com/user-attachments/assets/370243e1-f152-4578-89b1-81db4a5416b4"
/>|


### **After**

<!-- [screenshots/recordings] -->

## **Pre-merge author checklist**

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Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask
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Standards](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/CODING_GUIDELINES.md).
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Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.



<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Remove horizontal auto margins from the AssetPage root container and
update snapshots accordingly.
> 
> - **Frontend**
> - **Asset layout**: In `ui/pages/asset/components/asset-page.tsx`,
remove `marginLeft="auto"` and `marginRight="auto"` from the root `Box`
(`asset__content`), keeping only `marginTop={4}`.
> - **Tests**
> - Update Jest snapshots in
`ui/pages/asset/components/__snapshots__/asset-page.test.tsx.snap` to
reflect removed `mm-box--margin-right-auto` and
`mm-box--margin-left-auto` classes.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
7dabfe3. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Nidhi Kumari <[email protected]>

Author: n3ps

ui/pages/asset/components/__snapshots__/asset-page.test.tsx.snap

@@ -3,7 +3,7 @@
 exports[`AssetPage should render a native asset 1`] = `
 <div>
   <div
-    class="mm-box asset__content mm-box--margin-top-4 mm-box--margin-right-auto mm-box--margin-left-auto"
+    class="mm-box asset__content mm-box--margin-top-4"
   >
     <div
       class="mm-box mm-box--padding-top-1 mm-box--padding-right-4 mm-box--padding-bottom-3 mm-box--padding-left-2 mm-box--display-flex mm-box--flex-direction-row mm-box--justify-content-space-between"
@@ -422,7 +422,7 @@ exports[`AssetPage should render a native asset 1`] = `
 exports[`AssetPage should render an ERC20 asset without prices 1`] = `
 <div>
   <div
-    class="mm-box asset__content mm-box--margin-top-4 mm-box--margin-right-auto mm-box--margin-left-auto"
+    class="mm-box asset__content mm-box--margin-top-4"
   >
     <div
       class="mm-box mm-box--padding-top-1 mm-box--padding-right-4 mm-box--padding-bottom-3 mm-box--padding-left-2 mm-box--display-flex mm-box--flex-direction-row mm-box--justify-content-space-between"
@@ -869,7 +869,7 @@ exports[`AssetPage should render an ERC20 asset without prices 1`] = `
 exports[`AssetPage should render an ERC20 token with prices 1`] = `
 <div>
   <div
-    class="mm-box asset__content mm-box--margin-top-4 mm-box--margin-right-auto mm-box--margin-left-auto"
+    class="mm-box asset__content mm-box--margin-top-4"
   >
     <div
       class="mm-box mm-box--padding-top-1 mm-box--padding-right-4 mm-box--padding-bottom-3 mm-box--padding-left-2 mm-box--display-flex mm-box--flex-direction-row mm-box--justify-content-space-between"

ui/pages/asset/components/asset-page.tsx

@@ -327,12 +327,7 @@ const AssetPage = ({
   const showTronResources = isTron && type === AssetType.native;
 
   return (
-    <Box
-      marginLeft="auto"
-      marginRight="auto"
-      marginTop={4}
-      className="asset__content"
-    >
+    <Box marginTop={4} className="asset__content">
       <Box
         display={Display.Flex}
         flexDirection={FlexDirection.Row}