[fix/feat:ui] Preserve open-in editor brand colors

[sandersonstabo]

What changed

Editor icons in the open-in picker now keep their intended brand color in both the trigger and dropdown. Generic file manager entries stay muted.

Why

Zed and GitHub-style editor icons were readable in one place and muted in another. The picker now applies one brand-versus-generic icon rule everywhere.

UI changes

Before:

After:

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

Testing

vp check; vp run typecheck passed locally before splitting these PRs.

Note

Preserve brand colors for editor icons in OpenInPicker

Adds a kind field ('brand' | 'generic') to each option in OpenInPicker.tsx. A new getOpenInIconClass helper applies text-foreground opacity-100 to brand editor icons and text-muted-foreground to the generic file manager icon, replacing the previously uniform muted styling.

^{Macroscope summarized a769fce.}

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Note

Low Risk
Presentation-only class changes in the open-in picker; no editor launch or preference logic is modified.

Overview
Open-in picker icons now distinguish brand editors from the generic file manager entry using a shared styling rule on both the primary button and the dropdown.

Each resolved option gets a kind of brand or generic. A new getOpenInIconClass helper applies text-foreground opacity-100 for brand icons and text-muted-foreground for the Finder/Explorer/Files option, replacing the previous behavior where menu icons were always muted and the trigger icon had no consistent color treatment.

^{Reviewed by Cursor Bugbot for commit a769fce. Bugbot is set up for automated code reviews on this repo. Configure here.}