regression: empty attachments leads to a Moderation Console GUI crash

[Dnouv]

Proposed changes (including videos or screenshots)

• We've improved the handling of the attachments[] and files[] arrays in our message processing logic. Previously, there were edge cases where the attachments[] array was present but empty, and the files[] array was not present. This could lead to unexpected behavior. With this update, we've added checks to ensure that the attachments[] array not only exists, but also contains at least one element before attempting to access the files[] array. This makes our reported message processing more robust and prevents potential issues caused by these edge cases.

Issue(s)

Steps to test or reproduce

Further comments

WM-221

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (53b934e) 49.54% compared to head (488166d) 49.53%.

Additional details and impacted files

@@                Coverage Diff                @@
##           release-6.6.0   #31592      +/-   ##
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- Coverage          49.54%   49.53%   -0.01%     
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  Files               3322     3329       +7     
  Lines              81748    81831      +83     
  Branches           16874    16888      +14     
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+ Hits               40501    40538      +37     
- Misses             36509    36542      +33     
- Partials            4738     4751      +13     

Flag	Coverage Δ
e2e	53.26% <ø> (+0.02%)	⬆️
e2e-api	40.61% <ø> (-0.04%)	⬇️
unit	76.47% <ø> (ø)

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