feat: Sidebar filters for teams/channels/dms

[dougfabris]

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SIDE2-22
SIDE2-23
SIDE2-24
SIDE2-97

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Codecov Report

Attention: Patch coverage is 20.75472% with 84 lines in your changes missing coverage. Please review.

Project coverage is 64.03%. Comparing base (1a6a2f7) to head (510a888).
Report is 53 commits behind head on feat/sidebar-filters.

Additional details and impacted files

@@                   Coverage Diff                    @@
##           feat/sidebar-filters   #36322      +/-   ##
========================================================
- Coverage                 64.07%   64.03%   -0.04%     
========================================================
  Files                      3146     3155       +9     
  Lines                    104881   104952      +71     
  Branches                  19992    19989       -3     
========================================================
+ Hits                      67200    67208       +8     
- Misses                    35093    35159      +66     
+ Partials                   2588     2585       -3     

Flag	Coverage Δ
e2e	55.24% <16.00%> (-0.16%)	⬇️
unit	69.48% <100.00%> (-0.03%)	⬇️

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[gabriellsh]

As we discussed, we need to handle the removal/deletion of rooms gracefully, so that the sidepanel doesn't break.