[stable6.0] feat: Meeting proposals calendar time blockers

[backportbot]

Backport of PR #7315

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 13.60%. Comparing base (0fa82c9) to head (fe223ce).
⚠️ Report is 20 commits behind head on stable6.0.

Additional details and impacted files

@@            Coverage Diff             @@
##           stable6.0    #7482   +/-   ##
==========================================
  Coverage      13.60%   13.60%           
==========================================
  Files            218      218           
  Lines          11235    11235           
  Branches        2703     2690   -13     
==========================================
  Hits            1529     1529           
  Misses          9356     9356           
  Partials         350      350           

Flag	Coverage Δ
javascript	13.60% <ø> (ø)

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