qs: numerous performance optimizations

- ClippingRectangle usages
- Asynchronous loader usages
- Replace cava visualizers with shaders

quickshell/Modals/DankLauncherV2/DankLauncherV2ModalSpotlight.qml

@@ -120,6 +120,18 @@ Item {
     readonly property int borderWidth: SettingsData.dankLauncherV2BorderEnabled ? SettingsData.dankLauncherV2BorderThickness : 0
     readonly property bool useSingleWindow: CompositorService.isHyprland || useBackgroundDarken
 
+    // Blur region isn't auto-committed on geometry changes; kick twice to catch resize settling.
+    function _kickBlurCommit() {
+        launcherBlur.kick();
+        Qt.callLater(launcherBlur.kick);
+    }
+
+    onAlignedXChanged: _kickBlurCommit()
+    onAlignedYChanged: _kickBlurCommit()
+    onAlignedWidthChanged: _kickBlurCommit()
+    on_ContentImplicitHChanged: _kickBlurCommit()
+    onContentVisibleChanged: _kickBlurCommit()
+
     signal dialogClosed
 
     function _ensureContentLoadedAndInitialize(query, mode) {
@@ -328,6 +340,7 @@ Item {
         exclusionMode: ExclusionMode.Ignore
 
         WindowBlur {
+            id: launcherBlur
             targetWindow: launcherWindow
             readonly property real op: Math.max(0, Math.min(1, (modalContainer.opacity - 0.06) * 2))
             blurX: modalContainer.x
@@ -337,6 +350,9 @@ Item {
             blurRadius: root.cornerRadius
         }
 
+        onWidthChanged: root._kickBlurCommit()
+        onHeightChanged: root._kickBlurCommit()
+
         WlrLayershell.namespace: "dms:spotlight"
         WlrLayershell.layer: root.effectiveLauncherLayer
         WlrLayershell.exclusiveZone: -1
@@ -421,6 +437,9 @@ Item {
 
             opacity: contentVisible ? 1 : 0
 
+            onOpacityChanged: root._kickBlurCommit()
+            onSlideOffsetChanged: root._kickBlurCommit()
+
             Behavior on opacity {
                 NumberAnimation {
                     duration: contentVisible ? root._openDuration : root._closeDuration