feat(Bpmnjs): Ensure that the user is fully informed about the consequences when deleting a task

[framitdavid]

Description

Before proceeding with deleting the task, we want to ensure that the user is fully informed about the consequences. Continuing will permanently remove the task including any associated layoutset from local changes.

Related Issue(s)

• Show confirm dialogue when users deletes a task #12660

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 90.13%. Comparing base (ced14ac) to head (bf811b4).

Files	Patch %	Lines
...r/src/bpmnProviders/SupportedContextPadProvider.js	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12702      +/-   ##
==========================================
- Coverage   90.18%   90.13%   -0.05%     
==========================================
  Files        1299     1299              
  Lines       18573    18583      +10     
  Branches     2261     2261              
==========================================
  Hits        16750    16750              
- Misses       1564     1574      +10     
  Partials      259      259              

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[nkylstad]