test(Livechat): More Livechat Tests

[MartinSchoeler]

Existing tests:

• Basic operations on new chat with clearLocalStorageWhenChatEnded disabled
• Basic operations on new chat with clearLocalStorageWhenChatEnded enabled (failing, needs regression: Livechat resubscription #31985 to pass)

New tests:

• Change department from widget (before & after new chat)
• Close chat from widget (before & after new chat)
• Close chat and start as another visitor (clearLocalStorageWhenChatEnded` enabled) (failing, needs regression: Livechat resubscription #31985 to pass)

[changeset-bot]

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Latest commit: 4a97dd9

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.75%. Comparing base (5e1b782) to head (4a97dd9).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #31995      +/-   ##
===========================================
+ Coverage    54.65%   54.75%   +0.10%     
===========================================
  Files         2298     2298              
  Lines        50638    50702      +64     
  Branches     10325    10352      +27     
===========================================
+ Hits         27677    27764      +87     
+ Misses       20470    20443      -27     
- Partials      2491     2495       +4     

Flag	Coverage Δ
e2e	53.78% <ø> (+0.02%)	⬆️
e2e-api	40.14% <ø> (+0.06%)	⬆️
unit	75.74% <ø> (+0.18%)	⬆️

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