native NetworkManager + all native dbus bindings via dms

- Scrap janky NetworkService in favor of, dms' native NM integration
  socket
- Scrap all gdbus usage in favor of native dbus bindings in dms
  (loginctl, freedesktop)

It means that - some features won't work if running without dms wrapper.

But the trade off is certainly worth it, in the long-run for efficiency
improvements.

Services/NiriService.qml

@@ -36,26 +36,10 @@ Singleton {
     property bool matugenSuppression: false
     property bool configGenerationPending: false
 
-    property bool _wantSockets: true
-    property int _reconnectAttempt: 0
-
-    readonly property int _reconnectBaseMs: 400
-    readonly property int _reconnectMaxMs: 15000
-
     signal windowUrgentChanged()
 
     Component.onCompleted: fetchOutputs()
 
-    Timer {
-        id: reconnectTimer
-        interval: 0
-        repeat: false
-        onTriggered: {
-            root._wantSockets = false
-            Qt.callLater(() => root._wantSockets = true)
-        }
-    }
-
     Timer {
         id: suppressToastTimer
         interval: 3000
@@ -150,20 +134,15 @@ Singleton {
         }
     }
 
-    Socket {
+    DankSocket {
         id: eventStreamSocket
         path: root.socketPath
-        connected: CompositorService.isNiri && root._wantSockets
+        connected: CompositorService.isNiri
 
         onConnectionStateChanged: {
             if (connected) {
-                _reconnectAttempt = 0
-                write('"EventStream"\n')
+                send('"EventStream"')
                 fetchOutputs()
-                return
-            }
-            if (CompositorService.isNiri) {
-                _scheduleReconnect()
             }
         }
 
@@ -179,20 +158,10 @@ Singleton {
         }
     }
 
-    Socket {
+    DankSocket {
         id: requestSocket
         path: root.socketPath
-        connected: CompositorService.isNiri && root._wantSockets
-
-        onConnectionStateChanged: {
-            if (connected) {
-                _reconnectAttempt = 0
-                return
-            }
-            if (CompositorService.isNiri) {
-                _scheduleReconnect()
-            }
-        }
+        connected: CompositorService.isNiri
     }
 
     function fetchOutputs() {
@@ -200,16 +169,6 @@ Singleton {
         outputsProcess.running = true
     }
 
-    function _scheduleReconnect() {
-        const pow = Math.min(_reconnectAttempt, 10)
-        const base = Math.min(_reconnectBaseMs * Math.pow(2, pow), _reconnectMaxMs)
-        const jitter = Math.floor(Math.random() * Math.floor(base / 4))
-        reconnectTimer.interval = base + jitter
-        reconnectTimer.restart()
-        _reconnectAttempt++
-        console.warn("NiriService: scheduling reconnect in ~", reconnectTimer.interval, "ms (attempt", _reconnectAttempt, ")")
-    }
-
     function sortWindowsByLayout(windowList) {
         return [...windowList].sort((a, b) => {
             const aWorkspace = workspaces[a.workspace_id]
@@ -500,7 +459,7 @@ Singleton {
 
     function send(request) {
         if (!CompositorService.isNiri || !requestSocket.connected) return false
-        requestSocket.write(JSON.stringify(request) + "\n")
+        requestSocket.send(request)
         return true
     }