wbar: add tooltip and stuff

dots/.config/quickshell/ii/modules/waffle/bar/SearchButton.qml

@@ -1,6 +1,7 @@
 import QtQuick
 import QtQuick.Layouts
 import org.kde.kirigami as Kirigami
+import qs
 import qs.services
 import qs.modules.common
 import qs.modules.waffle.looks
@@ -10,4 +11,14 @@ AppButton {
 
     iconName: "system-search"
     separateLightDark: true
+
+    onClicked: {
+        GlobalStates.overviewOpen = !GlobalStates.overviewOpen; // For now...
+    }
+
+    BarToolTip {
+        id: tooltip
+        text: Translation.tr("Search")
+        extraVisibleCondition: root.shouldShowTooltip
+    }
 }