Move dialogs into a separate dir and create them dynamically.

Add "ignore user".
Update libqmatrixclient.

imports/Spectral/Dialog/LoginDialog.qml

@@ -0,0 +1,56 @@
+import QtQuick 2.12
+import QtQuick.Controls 2.12
+import QtQuick.Layouts 1.12
+
+import Spectral.Component 2.0
+
+Dialog {
+    anchors.centerIn: parent
+    width: 360
+
+    id: root
+
+    title: "Login"
+
+    standardButtons: Dialog.Ok | Dialog.Cancel
+
+    onAccepted: doLogin()
+
+    contentItem: ColumnLayout {
+        AutoTextField {
+            Layout.fillWidth: true
+
+            id: serverField
+
+            placeholderText: "Server Address"
+            text: "https://matrix.org"
+        }
+
+        AutoTextField {
+            Layout.fillWidth: true
+
+            id: usernameField
+
+            placeholderText: "Username"
+
+            onAccepted: passwordField.forceActiveFocus()
+        }
+
+        AutoTextField {
+            Layout.fillWidth: true
+
+            id: passwordField
+
+            placeholderText: "Password"
+            echoMode: TextInput.Password
+
+            onAccepted: root.doLogin()
+        }
+    }
+
+    function doLogin() {
+        spectralController.loginWithCredentials(serverField.text, usernameField.text, passwordField.text)
+    }
+
+    onClosed: root.destroy()
+}