Document Desktop theme live preview

[opencode-agent[bot]]

Findings

• a4411c21b feat(desktop): theme preview adds a user-facing “live preview” when navigating theme (and light/dark/system scheme) options in the Desktop command palette; the preview is committed on selection and reverted on cancel.
• 82e5d6d45 Desktop: Sync LSP updates and 9d61370ac sync look like internal/UI-console changes (status refresh + bench details) and don’t warrant user docs in packages/web/src/content/docs/*.

Docs Update

• Added a short tip explaining Desktop theme preview + apply/cancel behavior in packages/web/src/content/docs/themes.mdx:73.

Validation

• bun run build succeeded in packages/web.

Triggered by scheduled workflow

opencode session  |  github run