feat: media playback OSD (#1602)

* feat: media playback OSD

* Update code style improvements
- Removes resetTimer to reuse event driven code

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Co-authored-by: purian23 <purian23@gmail.com>

quickshell/Common/SettingsData.qml

@@ -503,6 +503,7 @@ Singleton {
     property int osdPosition: SettingsData.Position.BottomCenter
     property bool osdVolumeEnabled: true
     property bool osdMediaVolumeEnabled: true
+    property bool osdMediaPlaybackEnabled: true
     property bool osdBrightnessEnabled: true
     property bool osdIdleInhibitorEnabled: true
     property bool osdMicMuteEnabled: true

quickshell/Common/settings/SettingsSpec.js

@@ -331,6 +331,7 @@ var SPEC = {
     osdPosition: { def: 5 },
     osdVolumeEnabled: { def: true },
     osdMediaVolumeEnabled: { def: true },
+    osdMediaPlaybackEnabled: { def: true },
     osdBrightnessEnabled: { def: true },
     osdIdleInhibitorEnabled: { def: true },
     osdMicMuteEnabled: { def: true },