MediaMini: add fixed width option

Modules/Bar/Widgets/MediaMini.qml

@@ -40,6 +40,7 @@ Item {
 
   // Maximum widget width with user settings support
   readonly property real maxWidth: (widgetSettings.maxWidth !== undefined) ? widgetSettings.maxWidth : Math.max(widgetMetadata.maxWidth, screen.width * 0.06)
+  readonly property bool useFixedWidth: (widgetSettings.useFixedWidth !== undefined) ? widgetSettings.useFixedWidth : widgetMetadata.useFixedWidth
 
   readonly property bool hasActivePlayer: MediaService.currentPlayer !== null
   readonly property string placeholderText: I18n.tr("bar.widget-settings.media-mini.no-active-player")
@@ -111,6 +112,11 @@ Item {
 
   // Dynamic width: adapt to content but respect maximum width setting
   readonly property real dynamicWidth: {
+    // If using fixed width mode, always use maxWidth
+    if (useFixedWidth) {
+      return maxWidth
+    }
+    // Otherwise, adapt to content
     if (!hasActivePlayer) {
       return maxWidth
     }