title_bar: Fix drop down arrow shifting upon user logging in (#61267)

# Objective

Fixes #44529

## Solution

Earlier, the container holding the right side of the title bar applied a
conditional right padding depending on the whether the user was signed
in or not. This PR removes the conditional padding and replaces it with
a constant.

## Testing

The changes where visually verified by replicating the issue and seeing
if the fix works.

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [ ] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

## Showcase


[](https://github.com/user-attachments/assets/017099c3-224e-4e32-9f28-66961e244d1b)

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## Release Notes:

Fixed drop down arrow shifting upon logging in.
6a8f5a30b3Pingy committed on 7/21/2026, 6:44:38 AM· committed by GitHubparentb5e03c7
1 file changedLine totals unavailable