feat: add command palette functionality and shortcuts

- Implemented command palette with keyboard shortcut (⌘K) for opening.
- Added commands for opening, closing, setting query, and selecting items in the command palette.
- Created tests for command palette commands and input handling.
- Enhanced layer actions with functions for adding, grouping, and deleting layers.
- Updated UI components to integrate command palette and shortcuts.

commands/index.ts

@@ -71,6 +71,18 @@ export type {
 export type { CommandDispatcher, Dispatch } from "./dispatcher";
 export type { CommandId, CommandPayloads } from "./payloads";
 export { createCommandDispatcher } from "./dispatcher";
+export {
+  commandPaletteCloseCommand,
+  commandPaletteCommands,
+  commandPaletteOpenCommand,
+  commandPaletteSetQueryCommand,
+  commandPaletteSetSelectedIndexCommand,
+} from "./palette";
+export type {
+  CommandPaletteOpenPayload,
+  CommandPaletteSetQueryPayload,
+  CommandPaletteSetSelectedIndexPayload,
+} from "./palette";
 export type { CommandRegistry } from "./registry";
 export { createCommandRegistry } from "./registry";
 export { selectionAddLayerCommand, selectionClearCommand, selectionCommands, selectionSetCommand } from "./selection";