Add CompositorService, make Logger look a bit nicer

Modules/Background/Overview.qml

@@ -7,10 +7,10 @@ import qs.Services
 import qs.Widgets
 
 NLoader {
-  active: WorkspacesService.isNiri
+  active: CompositorService.isNiri
 
   Component.onCompleted: {
-    if (WorkspacesService.isNiri) {
+    if (CompositorService.isNiri) {
       Logger.log("Overview", "Loading Overview component (Niri detected)")
     } else {
       Logger.log("Overview", "Skipping Overview component (Niri not detected)")

Modules/Bar/ActiveWindow.qml

@@ -27,11 +27,11 @@ Row {
 
   // Update text when window changes
   Connections {
-    target: typeof NiriService !== "undefined" ? NiriService : null
-    function onFocusedWindowIndexChanged() {
+    target: CompositorService
+    function onActiveWindowChanged() {
       // Check if window actually changed
-      if (NiriService.focusedWindowIndex !== lastWindowIndex) {
-        lastWindowIndex = NiriService.focusedWindowIndex
+      if (CompositorService.focusedWindowIndex !== lastWindowIndex) {
+        lastWindowIndex = CompositorService.focusedWindowIndex
         showingFullTitle = true
         fullTitleTimer.restart()
       }
@@ -39,11 +39,7 @@ Row {
   }
 
   function getFocusedWindow() {
-    if (typeof NiriService === "undefined" || NiriService.focusedWindowIndex < 0
-        || NiriService.focusedWindowIndex >= NiriService.windows.length) {
-      return null
-    }
-    return NiriService.windows[NiriService.focusedWindowIndex]
+    return CompositorService.getFocusedWindow()
   }
 
   function getTitle() {

Modules/SidePanel/PowerMenu.qml

@@ -348,13 +348,7 @@ NPanel {
   // ----------------------------------
   // System functions
   function logout() {
-    if (WorkspacesService.isNiri) {
-      logoutProcessNiri.running = true
-    } else if (WorkspacesService.isHyprland) {
-      logoutProcessHyprland.running = true
-    } else {
-      Logger.warn("PowerMenu", "No supported compositor detected for logout")
-    }
+    CompositorService.logout()
   }
 
   function suspend() {
@@ -390,19 +384,7 @@ NPanel {
     running: false
   }
 
-  Process {
-    id: logoutProcessNiri
 
-    command: ["niri", "msg", "action", "quit", "--skip-confirmation"]
-    running: false
-  }
-
-  Process {
-    id: logoutProcessHyprland
-
-    command: ["hyprctl", "dispatch", "exit"]
-    running: false
-  }
 
   Process {
     id: logoutProcess