Add user setting time date format

[daniele-mng]

What

• Introduced user setting for custom and default system date and time.

Why

• These changes are necessary to provide users with customizable and localized options for displaying date and time.

References

GEA-430

Checklist

• Tests

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA c7b3f4b.

Ensure that dependencies are being submitted on PR branches and consider enabling retry-on-snapshot-warnings. See the documentation for more information and troubleshooting advice.

OpenSSF Scorecard

Package	Version	Score	Details

Scanned Manifest Files

[github-actions]

Conventional Commits Report

Type	Number
Added	1

🚀 Conventional commits found.

[a-h-abdelsalam]

Looks good! Only added a few comments.
I cannot judge the German translations so maybe someone else can take a look on that.

[4D617274696E]

Reviewed German translations, looks good.

[codecov]

Codecov Report

Attention: Patch coverage is 53.98230% with 208 lines in your changes missing coverage. Please review.

Project coverage is 64.31%. Comparing base (ed32a25) to head (c7b3f4b).
Report is 11 commits behind head on opensight-ui.

Files with missing lines	Patch %	Lines
src/web/pages/usersettings/usersettingspage.jsx	0.00%	72 Missing ⚠️
src/web/pages/usersettings/generalpart.jsx	0.00%	69 Missing ⚠️
src/web/pages/usersettings/dialog.jsx	0.00%	19 Missing ⚠️
src/web/pages/login/loginpage.jsx	71.87%	9 Missing ⚠️
src/web/utils/userSettingTimeDateFormatters.js	77.50%	9 Missing ⚠️
src/web/components/chart/schedule.jsx	16.66%	5 Missing ⚠️
src/web/pages/notes/detailspage.jsx	20.00%	4 Missing ⚠️
src/web/pages/overrides/detailspage.jsx	20.00%	4 Missing ⚠️
src/gmp/commands/users.js	62.50%	3 Missing ⚠️
src/web/pages/tasks/icons/scheduleicon.jsx	25.00%	3 Missing ⚠️
... and 10 more

Additional details and impacted files

@@               Coverage Diff                @@
##           opensight-ui    #4144      +/-   ##
================================================
- Coverage         64.39%   64.31%   -0.08%     
================================================
  Files              1111     1111              
  Lines            103662   103884     +222     
  Branches           6466     6479      +13     
================================================
+ Hits              66755    66816      +61     
- Misses            36767    36929     +162     
+ Partials            140      139       -1     

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