Add Google calendar API and workspace sync

lib/dialogs.dart

@@ -1005,6 +1005,7 @@ class JarvisSettingsDialog extends StatefulWidget {
 class _JarvisSettingsDialogState extends State<JarvisSettingsDialog> {
   late final TextEditingController apiUrl;
   late final TextEditingController apiToken;
+  late final TextEditingController workspaceToken;
   late final TextEditingController deviceName;
   late JarvisSettings currentSettings;
   bool registering = false;
@@ -1017,6 +1018,9 @@ class _JarvisSettingsDialogState extends State<JarvisSettingsDialog> {
     currentSettings = widget.settings;
     apiUrl = TextEditingController(text: currentSettings.apiUrl);
     apiToken = TextEditingController(text: currentSettings.apiToken);
+    workspaceToken = TextEditingController(
+      text: currentSettings.workspaceToken ?? '',
+    );
     deviceName = TextEditingController(
       text: currentSettings.deviceName ?? 'Family tablet',
     );
@@ -1026,6 +1030,7 @@ class _JarvisSettingsDialogState extends State<JarvisSettingsDialog> {
   void dispose() {
     apiUrl.dispose();
     apiToken.dispose();
+    workspaceToken.dispose();
     deviceName.dispose();
     super.dispose();
   }
@@ -1033,6 +1038,9 @@ class _JarvisSettingsDialogState extends State<JarvisSettingsDialog> {
   JarvisSettings get draft => currentSettings.copyWith(
     apiUrl: normalizeJarvisUrl(apiUrl.text),
     apiToken: apiToken.text.trim(),
+    workspaceToken: workspaceToken.text.trim().isEmpty
+        ? null
+        : workspaceToken.text.trim(),
   );
 
   @override
@@ -1074,6 +1082,18 @@ class _JarvisSettingsDialogState extends State<JarvisSettingsDialog> {
                 ),
               ),
               const SizedBox(height: 12),
+              TextField(
+                controller: workspaceToken,
+                obscureText: true,
+                decoration: const InputDecoration(
+                  labelText: 'K\u00f6z\u00f6s munkat\u00e9r token',
+                  hintText:
+                      'Ugyanez ker\u00fclj\u00f6n minden csal\u00e1di eszk\u00f6zre',
+                  helperText:
+                      'Ezzel l\u00e1tja t\u00f6bb app ugyanazt a csal\u00e1dot, k\u00e9szletet \u00e9s bev\u00e1s\u00e1rl\u00f3list\u00e1t.',
+                ),
+              ),
+              const SizedBox(height: 12),
               TextField(
                 controller: deviceName,
                 decoration: const InputDecoration(