Timeline header: ensure that the decoration is clickable

[bmarty]

Content

Timeline header: ensure that the decoration is clickable and properly fix the icon rendering (when the room name is too long).

Motivation and context

Whole clickable room title / nice UI

Screenshots / GIFs

Tests

• Open a DM with a verified user
• Observe that the room green decoration is clickable and open the room settings.

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 24
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• Pull request includes screenshots or videos if containing UI changes
• You've made a self review of your PR

[github-actions]

📱 Scan the QR code below to install the build (arm64 only) for this PR.

If you can't scan the QR code you can install the build via this link: https://i.diawi.com/kxcxnp

[bmarty]

Note sure why there are so many diff in the sc recording. It's probably coming from #4484 being merged.

Edit: I have created a branch to record the screenshots currently on develop to confirm this.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.10%. Comparing base (b7ff9a5) to head (0277406).
Report is 6 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4495      +/-   ##
===========================================
- Coverage    80.10%   80.10%   -0.01%     
===========================================
  Files         2080     2080              
  Lines        55680    55679       -1     
  Branches      6812     6812              
===========================================
- Hits         44605    44604       -1     
  Misses        8737     8737              
  Partials      2338     2338              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 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.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[jmartinesp]

Thanks!