regression: GUI crashing when editing a OC room

[dougfabris]

Proposed changes (including videos or screenshots)

Introduced here: #33796

Theres a ContextualbarScrollabeContent being used incorrectly in a loading state when editing a omnichannel room. As we recently changed how we handle our scrollbars, the GUI is crashing when accessing it.

Issue(s)

Steps to test or reproduce

• Open a Omnichannel Room
• Try to edit the room information
• The GUI should not crash

Further comments

CORE-1046

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.74%. Comparing base (c862926) to head (2009ee8).
Report is 16 commits behind head on release-7.5.0.

Additional details and impacted files

@@                Coverage Diff                @@
##           release-7.5.0   #35624      +/-   ##
=================================================
+ Coverage          59.67%   59.74%   +0.06%     
=================================================
  Files               2826     2830       +4     
  Lines              68313    68434     +121     
  Branches           15134    15177      +43     
=================================================
+ Hits               40764    40883     +119     
  Misses             24937    24937              
- Partials            2612     2614       +2     

Flag	Coverage Δ
unit	75.92% <ø> (+0.05%)	⬆️

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