chore: Remove invalid aria-hidden prop from layout wrapper

[dougfabris]

Proposed changes (including videos or screenshots)

The error below is popping up, because we're using an invalid aria-hidden to the layout wrapper when displaying a modal, telling assistive technologies to not consider the main tree when the modal is on the screen. Since we do use a proper strategy to block the focus already, its not necessary to use this aria-hidden property.

Introduced here: #26826

Issue(s)

Steps to test or reproduce

Further comments

[dionisio-bot]

Looks like this PR is ready to merge! 🎉
If you have any trouble, please check the PR guidelines

[changeset-bot]

⚠️ No Changeset found

Latest commit: a6d9abd

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

PR Preview Action v1.6.0
🚀 View preview at https://RocketChat.github.io/Rocket.Chat/pr-preview/pr-35429/
Built to branch gh-pages at 2025-03-10 13:48 UTC. Preview will be ready when the GitHub Pages deployment is complete.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.68%. Comparing base (0000781) to head (a6d9abd).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #35429      +/-   ##
===========================================
+ Coverage    59.64%   59.68%   +0.03%     
===========================================
  Files         2828     2829       +1     
  Lines        68541    68788     +247     
  Branches     15193    15240      +47     
===========================================
+ Hits         40884    41055     +171     
- Misses       25009    25074      +65     
- Partials      2648     2659      +11     

Flag	Coverage Δ
unit	75.87% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.