Created Hook system (let's users run commands after specific actions)

NInputAction: create NTextInput with NButton
HooksService: add dark/light mode hook, add wallpaper change hook
HooksTab: create 1 NInputAction for each hook
Wallpaper: add hook functionallity

shell.qml

@@ -110,6 +110,9 @@ ShellRoot {
     // Initialize UpdateService
     UpdateService.init()
 
+    // Initialize HooksService
+    HooksService.init()
+
     // Kickoff NightLight service
     NightLightService.apply()
   }