[AC-2436] Show unassigned items banner in browser

[eliykat]

Type of change

- [ ] Bug fix
- [x] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [ ] Build/deploy pipeline (DevOps)
- [ ] Other

Objective

Extend #8655 to browser.

It's stacked on #8655 as the web vault is the main priority, this can be reviewed and merged separately (after that one).

Notes:

• I used the same wording, however there's less space here so I've asked product to revise it as it's a bit wordy
• this replaces the autofill banner. As with the web vault and the UI banner, I've just replaced it in the template, the team responsible need to clean up the rest of the (now unused) banner code.
• otherwise, this uses the same service and logic as web, so what works there should work here.

Code changes

• file.ext: Description of what was changed and why

Screenshots

Before you submit

• Please add unit tests where it makes sense to do so (encouraged but not required)
• If this change requires a documentation update - notify the documentation team
• If this change has particular deployment requirements - notify the DevOps team
• Ensure that all UI additions follow WCAG AA requirements

[codecov]

Codecov Report

Attention: Patch coverage is 62.50000% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 27.22%. Comparing base (4a3cd24) to head (61bb7f5).

Files	Patch %	Lines
...lt/popup/components/vault/current-tab.component.ts	0.00%	6 Missing ⚠️
...ar/src/services/unassigned-items-banner.service.ts	83.33%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8656      +/-   ##
==========================================
+ Coverage   27.21%   27.22%   +0.01%     
==========================================
  Files        2338     2339       +1     
  Lines       68230    68254      +24     
  Branches    12742    12746       +4     
==========================================
+ Hits        18567    18582      +15     
- Misses      48268    48276       +8     
- Partials     1395     1396       +1     

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[github-actions]

Checkmarx One – Scan Summary & Details – f3889a9a-7d6d-4c71-88d0-0b31985c42e7

New Issues

Severity	Issue	Source File / Package	Checkmarx Insight
	Angular_Improper_Type_Pipe_Usage	/apps/web/src/app/layouts/header/web-header.component.html: 1	Attack Vector
	Angular_Improper_Type_Pipe_Usage	/apps/web/src/app/layouts/header/web-header.component.html: 1	Attack Vector

[gbubemismith]

Looks good for team vault.

[gbubemismith]

Looks like there are some linting issues

The base branch was changed.