Hide the keyboard when navigating from the chat room screen

[jmartinesp]

Content

Hide the keyboard when the composer is in use when:

• We tap on the room details screen and navigate to it.
• We tap on any room member details (avatar, display name) and navigate to their profiles.

Motivation and context

It seems like this became a regression.

Tests

• Open the keyboard by tapping on the composer in a chat room.
• Tap on the room header so the room details screen is opened. The keyboard should hide.
• Go back.
• Now tap on any user's info in the timeline to open their profile. The keyboard should hide here too.

Tested devices

• Physical
• Emulator
• OS version(s): 14

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

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[bmarty]

LGTM, thanks!

[bmarty]

Nice pattern!

[bmarty]

I was thinking about also wrapping onJoinCallClick below but since it will start another Activity, I think it's fine to keep the keyboard opened.

[sonarcloud]

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.87%. Comparing base (1be7993) to head (b75cf92).
Report is 12 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #3878   +/-   ##
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  Coverage    82.87%   82.87%           
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  Files         1785     1785           
  Lines        45100    45100           
  Branches      5324     5324           
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  Hits         37377    37377           
  Misses        5857     5857           
  Partials      1866     1866           

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