WIP Pinned events : start creating the banner ui, no logic.

[ganfra]

Content

Create the PinnedBanner UI with all the skeleton.

Motivation and context

Starts handling element-hq/element-x-ios#3059

Screenshots / GIFs

Check recored screenshots.

Tests

Nothing to test yet.

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• 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
• Pull request includes a sign off
• You've made a self review of your PR

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 82.38636% with 31 lines in your changes missing coverage. Please review.

Project coverage is 76.18%. Comparing base (6b8dba6) to head (6ee86a2).

Files	Patch %	Lines
...ges/impl/pinned/banner/PinnedMessagesBannerView.kt	84.78%	4 Missing and 10 partials ⚠️
...roid/libraries/designsystem/utils/LazyListState.kt	33.33%	2 Missing and 6 partials ⚠️
...mpl/pinned/banner/PinnedMessagesBannerPresenter.kt	64.28%	2 Missing and 3 partials ⚠️
...ent/android/features/messages/impl/MessagesView.kt	91.66%	0 Missing and 2 partials ⚠️
...es/impl/pinned/banner/PinnedMessagesBannerState.kt	80.00%	0 Missing and 1 partial ⚠️
...id/features/messages/impl/timeline/TimelineView.kt	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3259      +/-   ##
===========================================
+ Coverage    76.16%   76.18%   +0.02%     
===========================================
  Files         1648     1654       +6     
  Lines        38825    38985     +160     
  Branches      7532     7563      +31     
===========================================
+ Hits         29570    29701     +131     
- Misses        5353     5361       +8     
- Partials      3902     3923      +21     

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[jmartinesp]

LGTM, thanks!

[jmartinesp]

👌