test: export messages with hide contextual bar preference

[jessicaschelly]

Proposed changes (including videos or screenshots)

Created an automated test to reproduce and validate the bug where clicking a message in the Export Messages dialog causes it to close when the "Hide Contextual Bar by clicking outside it" preference is enabled.
This test will serve as a check once the underlying issue is fixed.

Issue(s)

https://rocketchat.atlassian.net/browse/CORE-1259

Steps to test or reproduce

1. Ensure the user preference "Hide Contextual Bar by clicking outside it" is enabled.
2. Navigate to any room or DM and trigger the Export Messages dialog.
3. Attempt to click/select a single message within the dialog.
4. The test verifies that the dialog does not close upon message selection.

Further comments

This test is intended to fail until the associated bug is fixed.

Once the fix is applied, this test can be used to verify that the dialog behavior is correct and stable going forward.

[dionisio-bot]

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[changeset-bot]

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Latest commit: 6106cfa

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[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 65.82%. Comparing base (759b178) to head (6106cfa).
⚠️ Report is 4 commits behind head on develop.

Additional details and impacted files

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##           develop   #36564      +/-   ##
===========================================
- Coverage    65.89%   65.82%   -0.07%     
===========================================
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  Lines       106742   106733       -9     
  Branches     20312    20315       +3     
===========================================
- Hits         70335    70259      -76     
- Misses       33733    33815      +82     
+ Partials      2674     2659      -15     

Flag	Coverage Δ
e2e	57.88% <ø> (+<0.01%)	⬆️
unit	71.12% <ø> (-0.06%)	⬇️

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