feat(launcher): UI improvements for clipboard preview window

Modules/Panels/Launcher/ClipboardPreview.qml

@@ -74,20 +74,10 @@ Item {
     ColumnLayout {
       id: contentColumn
       anchors.fill: parent
-      anchors.margins: Style.marginM
-      spacing: Style.marginM
+      anchors.margins: Style.marginS
+      spacing: Style.marginS
 
-      NText {
-        text: currentItem ? (currentItem.name || "Preview") : "Preview"
-        font.weight: Style.fontWeightBold
-        Layout.fillWidth: true
-        pointSize: Style.fontSizeM
-        color: Color.mOnSurface
-      }
 
-      NDivider {
-        Layout.fillWidth: true
-      }
 
       Rectangle {
         Layout.fillWidth: true

Modules/Panels/Launcher/Launcher.qml

@@ -17,7 +17,7 @@ SmartPanel {
 
   // Panel configuration
   readonly property int listPanelWidth: Math.round(600 * Style.uiScaleRatio)
-  readonly property int previewPanelWidth: Math.round(300 * Style.uiScaleRatio)
+  readonly property int previewPanelWidth: Math.round(400 * Style.uiScaleRatio)
   readonly property int totalBaseWidth: listPanelWidth + (Style.marginL * 2)
 
   preferredWidth: totalBaseWidth
@@ -278,9 +278,15 @@ SmartPanel {
       id: previewBox
       visible: root.previewActive
       width: root.previewPanelWidth
-      height: ui.height
+      height: Math.round(400 * Style.uiScaleRatio)
       x: ui.width + Style.marginM
-      y: 0
+      y: Math.max(
+           Style.marginL, // Minimum y is the top margin of the content area
+           Math.min(
+             resultsList.mapToItem(ui, 0, (root.selectedIndex * (root.entryHeight + resultsList.spacing)) - resultsList.contentY).y,
+             ui.height - previewBox.height - Style.marginL // Maximum y, considering bottom margin
+           )
+         )
       z: -1 // Draw behind main panel content if it ever overlaps
 
       opacity: visible ? 1.0 : 0.0