chore: remove second inner scroll bar from tx details

[infiniteflower]

Description

This PR removes the 2nd inner scrollbar from Bridge tx details.

Related issues

Fixes:

Manual testing steps

1. Do a bridge tx
2. Get navigated to Activity list
3. Click on a bridge tx
4. Observe only 1 scroll bar

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). 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.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbot]

Builds ready [8972ee2]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1605 ± 42 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1463	1799	1608	92	44
		domContentLoaded	1449	1781	1583	87	42
		load	1457	1798	1605	87	42
		domInteractive	21	136	45	30	14
		backgroundConnect	9	79	28	17	8
		firstReactRender	16	179	47	40	19
		getState	5	66	13	16	8
		initialActions	0	0	0	0	0
		loadScripts	1055	1370	1179	83	40
		setupStore	6	79	15	19	9
		uiStartup	1630	2340	1893	211	101

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: -32 Bytes (-0.00%)
• common: 0 Bytes (0.00%)