Shrink stored filter widget on incident list

[hmpf]

Scope and purpose

This makes the create/update/delete part of the filter box take up less space and changes the behavior of the widget so that update/delete no longer has a drop down but works on the already selected stored filter.

Screenshots

Before:

After:

Contributor Checklist

Every pull request should have this checklist filled out, no matter how small it is.
More information about contributing to Argus can be found in the
Development docs.

• Added a changelog fragment for towncrier
• Added/amended tests for new/changed code
• Added/changed documentation, including updates to the user manual if feature flow or UI is considerably changed
• Linted/formatted the code with ruff and djLint, easiest by using pre-commit
• The first line of the commit message continues the sentence "If applied, this commit will ...", starts with a capital letter, does not end with punctuation and is 50 characters or less long. See our how-to
• If applicable: Created new issues if this PR does not fix the issue completely/there is further work to be done
• If this results in changes in the UI: Added screenshots of the before and after
• If this results in changes to the database model: Updated the ER diagram

[github-actions]

Test results

    4 files    520 suites   19m 47s ⏱️
  622 tests   621 ✅ 1 💤 0 ❌
2 488 runs  2 484 ✅ 4 💤 0 ❌

Results for commit 9eea3be.

♻️ This comment has been updated with latest results.

[Simrayz]

Tested manually, and it works well. Nice 😄

[codecov]

Codecov Report

❌ Patch coverage is 54.44444% with 41 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.56%. Comparing base (26cf5d7) to head (9eea3be).

Files with missing lines	Patch %	Lines
src/argus/htmx/incident/views.py	28.84%	37 Missing ⚠️
src/argus/htmx/incident/filter.py	89.47%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1621      +/-   ##
==========================================
- Coverage   79.68%   79.56%   -0.13%     
==========================================
  Files         132      132              
  Lines        6113     6160      +47     
==========================================
+ Hits         4871     4901      +30     
- Misses       1242     1259      +17     

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[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud