Greetd: Add a greeter

Modules/Greetd/GreeterState.qml

@@ -0,0 +1,28 @@
+import QtQuick
+import Quickshell
+pragma Singleton
+pragma ComponentBehavior: Bound
+
+Singleton {
+    id: root
+
+    property string passwordBuffer: ""
+    property string username: ""
+    property string usernameInput: ""
+    property bool showPasswordInput: false
+    property string selectedSession: ""
+    property string pamState: ""
+    property bool unlocking: false
+
+    property var sessionList: []
+    property var sessionExecs: []
+    property int currentSessionIndex: 0
+
+    function reset() {
+        showPasswordInput = false
+        username = ""
+        usernameInput = ""
+        passwordBuffer = ""
+        pamState = ""
+    }
+}