Context menu with too much space between icons and text

### Describe the bug

After the version 140.0b3 (64-bit) update, the context menu looks like this:


The only icon / text pair looking good is UBlock Origin :-)

### Expected behavior

All icon / text pairs should look like UBlock Origin one

### Screenshots

_No response_

### OS

Windows 11

### OS - Others

_No response_

### Firefox Version

140.0b3

### Distribution

- [ ] [Original Lepton](https://github.com/black7375/Firefox-UI-Fix)
- [ ] [Lepton's photon style](https://github.com/black7375/Firefox-UI-Fix/tree/photon-style)
- [ ] [Lepton's proton style](https://github.com/black7375/Firefox-UI-Fix/tree/proton-style)

### Theme

- [ ] Light
- [ ] Dark
- [ ] Alpenglow (System: Light)
- [ ] Alpenglow (System: Dark)
- [ ] System Default
- [ ] Others: (e.g. [Photon Colors](https://addons.mozilla.org/en-US/firefox/addon/photon-colors/), [Google Chrome Dark](https://addons.mozilla.org/en-US/firefox/addon/google-chrome-dark/), [Fairytale Of Nature](https://addons.mozilla.org/en-US/firefox/addon/fairytale-of-nature/))

### Theme - More Info

_No response_

### `user.js` setup

user.js setup

```javascript
// Your settings
```

### Additional context

_No response_

Reproduce the context-menu layout on Windows 11 with Firefox 140.0b3 and compare the icon/text spacing against the UBlock Origin entry shown in the issue image. The issue names no source file or test, so first locate the context-menu styling entry point; done means the icon/text pairs have consistent spacing.

Written by the indexing model from the issue text.