keybinds: add toggle to switch to FloatingWindow and back

quickshell/Common/SettingsData.qml

@@ -465,6 +465,8 @@ Singleton {
     property bool launcherUseOverlayLayer: false
     property string launcherStyle: "full"
     property bool spotlightBarShowModeChips: false
+    property bool keybindsFloatingWindow: false
+    onKeybindsFloatingWindowChanged: saveSettings()
 
     property string _legacyWeatherLocation: "New York, NY"
     property string _legacyWeatherCoordinates: "40.7128,-74.0060"

quickshell/Common/settings/SettingsSpec.js

@@ -230,6 +230,7 @@ var SPEC = {
     launcherUseOverlayLayer: { def: false },
     launcherStyle: { def: "full" },
     spotlightBarShowModeChips: { def: false },
+    keybindsFloatingWindow: { def: false },
 
     useAutoLocation: { def: false },
     weatherEnabled: { def: true },