Switch projects from New Workspace with ⌘P/Ctrl+P (#2110)

* feat(app): add ⌘P shortcut to switch project on New Workspace screen

Opens the existing project picker with its search focused so the project
can be switched from the keyboard (type + Enter) instead of clicking the
badge and then the project.

Wires a new "workspace.project.pick" action through the standard keyboard
pipeline (binding -> route passthrough -> dispatcher), handled by a
screen-scoped handler on the New Workspace screen that is only registered
while the screen is mounted and there are projects to pick. Because
preventDefault only fires when a handler handles the key, ⌘P/Ctrl+P still
triggers native print everywhere else. Adds a Settings -> Shortcuts help
row (rebindable) and the "Switch project" label across all locales.

* test(app): cover project picker shortcut

---------

Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>

packages/app/e2e/helpers/new-workspace.ts

@@ -177,6 +177,14 @@ export async function openGlobalNewWorkspaceComposer(page: Page): Promise<void>
   });
 }
 
+export async function openNewWorkspaceProjectPickerWithShortcut(page: Page): Promise<void> {
+  await page.keyboard.press("Control+P");
+
+  const searchInput = page.getByPlaceholder("Search projects");
+  await expect(searchInput).toBeVisible({ timeout: 30_000 });
+  await expect(searchInput).toBeFocused();
+}
+
 export async function expectNewWorkspaceProjectSelected(
   page: Page,
   projectDisplayName: string,