Firefox extension does not adhere to browser's zoom level

### Steps To Reproduce

1. Go to Firefox 'Settings\General\Zoom'
2. Click on Default zoom '80%'
3. Click on Bitwarden Extension

### Expected Result

Bitwarden's extension UI to reduce size by 20%.

### Actual Result

Bitwarden's extension UI renders at 100% and is disproportionate to the rest of the browser's UI.

### Screenshots or Videos

_No response_

### Additional Context

_No response_

### Operating System

Windows

### Operating System Version

Windows 11 25H2 (26200.8037)

### Web Browser

Firefox

### Browser Version

148.0.2 (64-bit)

### Environment Versions

Version: 2026.1.1

SDK: 'main (8e5efd8)'

Server version: 2026.2.1

### Issue Tracking Info

- [x] I understand that work is tracked outside of Github. A PR will be linked to this issue should one be opened to address it, but Bitwarden doesn't use fields like "assigned", "milestone", or "project" to track progress.

Reproduce the issue in Firefox by setting the browser's default zoom to 80%, then open the Bitwarden extension and inspect how its UI handles the browser zoom setting. Done means the extension UI scales to match the configured 80% zoom without regressing its normal display.

Written by the indexing model from the issue text.