Give up focus when opening a tray menu

Closing the panel was not enough: SimpleTopBar stayed frontmost, so
Spotlight's search field never appeared. Deactivate the app when a tray
item is selected so transient panels can take focus, and allow a little
more time before the bar re-hides.

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4.1-flash

Sources/SimpleTopBar/App.swift

@@ -133,11 +133,16 @@ final class AppDelegate: NSObject, NSApplicationDelegate {
         )
         self.popover = popover
 
-        // Selecting a tray item must dismiss our panel, otherwise it stays on
-        // top of the menu that opens (and can strand menus behind it).
+        // Selecting a tray item must dismiss our panel and give up focus,
+        // otherwise the panel stays on top of the menu and our app stays
+        // frontmost, which stops transient items (Spotlight's search field)
+        // from appearing at all.
         Task { @MainActor [weak self] in
             MenuBarItemManager.shared.onWillPress = {
                 self?.popover?.performClose(nil)
+                DispatchQueue.main.asyncAfter(deadline: .now() + 0.05) {
+                    NSApp.deactivate()
+                }
             }
         }
     }