[FEATURE] Desktop: add a search/filter field to the Keyboard Shortcuts list

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

The Keyboard Shortcuts list in Claude Desktop (Cmd+/ or Help → Keyboard Shortcuts) now contains a lot of shortcuts, but there is no way to search or filter it. To find the one shortcut I need, I have to scroll and read the whole list from top to bottom, which is slow and uncomfortable.

Proposed Solution

Add a search/filter field at the top of the Keyboard Shortcuts list:

• focused automatically when the list opens,
• filters shortcuts by keyword as I type (matching the action name, and ideally the key combination too, e.g. typing "effort" or "shift+e"),
• shows only the relevant shortcuts immediately.

Alternative Solutions

Currently the only option is scrolling through the full list and reading it manually.

Priority

Medium - Would be very helpful

Feature Category

Other

Use Case Example

1. I want to change something quickly (e.g. effort level, a pane, the sidebar) and I don't remember the shortcut.
2. I press Cmd+/ to open the Keyboard Shortcuts list.
3. Today: I scroll and read the whole list until I find it.
4. With this feature: I type "effort" and immediately see the one matching shortcut.

Additional Context

Claude Desktop 2.37337.1 · macOS 26.7.1 (25G241) · Apple Silicon