Improve room moderation

[bmarty]

Improve distinction between the action of unbanning a user, which is rendered in a simple dialog, and doing other member moderation, which are rendered in a bottom sheet, thanks to the usage of selectedMember. The code is still a bit confusing, I hope this is better than before though.

As a drawback, we are loosing a preview of unbanning a user, since the Loading state cannot trigger the display of the banner anymore.

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 82.00000% with 9 lines in your changes missing coverage. Please review.

Project coverage is 82.81%. Comparing base (9dc58fc) to head (b33b423).
Report is 11 commits behind head on develop.

Files with missing lines	Patch %	Lines
...mbers/moderation/RoomMembersModerationPresenter.kt	88.88%	0 Missing and 3 partials ⚠️
...pl/members/moderation/RoomMembersModerationView.kt	66.66%	1 Missing and 2 partials ⚠️
...ndroid/libraries/matrix/ui/room/MatrixRoomState.kt	70.00%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3671      +/-   ##
===========================================
+ Coverage    82.80%   82.81%   +0.01%     
===========================================
  Files         1749     1750       +1     
  Lines        41840    41860      +20     
  Branches      5114     5117       +3     
===========================================
+ Hits         34644    34665      +21     
  Misses        5381     5381              
+ Partials      1815     1814       -1     

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[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 SonarCloud