fix(app): browser pane keyboard tweaks

- Refresh icon: use single-arrow RotateCw instead of two-arrow RefreshCw
- URL bar selects all text on focus
- Cmd+R now reloads the active browser pane (tracked via IPC) when
  the URL bar has focus, instead of reloading the Electron window
- Forward Paseo shortcut keys (b, e, w, t, k, /, \, comma, digits,
  enter, arrows) from the embedded webview to the main window so
  sidebar/tab/etc. shortcuts still fire when focus is inside the
  loaded page

packages/app/src/desktop/host.ts

@@ -74,6 +74,10 @@ export interface DesktopBrowserShortcutEvent {
   action: "focus-url";
 }
 
+export interface DesktopBrowserBridge {
+  setActivePane?: (browserId: string | null) => Promise<void>;
+}
+
 export interface DesktopInvokeBridge {
   invoke?: (command: string, args?: Record<string, unknown>) => Promise<unknown>;
 }
@@ -88,6 +92,7 @@ export interface DesktopHostBridge {
   notification?: DesktopNotificationBridge;
   opener?: DesktopOpenerBridge;
   menu?: DesktopMenuBridge;
+  browser?: DesktopBrowserBridge;
 }
 
 declare global {