fix(panel): wire search button to toggle spotlight

- Add on_clicked handler to search button in panel
- Add set_spotlight_toggle() method on Panel
- Connect spotlight.toggle in main.py after both are created

src/main.py

@@ -58,6 +58,7 @@ def main():
     panel = Panel()
     modusnoti = ModusNoti()
     spotlight = SpotlightWindow()
+    panel.set_spotlight_toggle(spotlight.toggle)
     deskwidget = Deskwidgets()
     dock = Dock()
     osd = OSDWindow()

src/window/panel/main.py

@@ -75,8 +75,13 @@ class Panel(Window):
             spacing=4,
         )
 
+        self._spotlight_toggle_cb = None
         self.search = Button(
-            name="panel-button", child=svg_file("misc/search.svg", size=22)
+            name="panel-button",
+            child=svg_file("misc/search.svg", size=22),
+            on_clicked=lambda *_: (
+                self._spotlight_toggle_cb() if self._spotlight_toggle_cb else None
+            ),
         )
         setup_cursor_hover(self.search, "pointer")
 
@@ -174,6 +179,9 @@ class Panel(Window):
         self._update_tray_visibility()
         self.show()
 
+    def set_spotlight_toggle(self, callback):
+        self._spotlight_toggle_cb = callback
+
     def on_dnd_changed(self, _, dnd_state):
         self.update_notification_icon()  # Update notification icon when DND changes