Cache Jarvis app config on startup

lib/data.dart

@@ -125,6 +125,7 @@ class AppJsonStore {
           syncedEvents: const [],
           todoSuggestions: const [],
           jarvisSettings: JarvisSettings.defaults(),
+          googleServerClientId: googleCalendarServerClientId,
         );
         await save(settings);
         return settings;
@@ -141,6 +142,7 @@ class AppJsonStore {
         syncedEvents: const [],
         todoSuggestions: const [],
         jarvisSettings: JarvisSettings.defaults(),
+        googleServerClientId: googleCalendarServerClientId,
       );
     }
   }
@@ -161,6 +163,7 @@ class AppSettings {
     required this.syncedEvents,
     required this.todoSuggestions,
     required this.jarvisSettings,
+    required this.googleServerClientId,
   });
 
   final List<Person> people;
@@ -169,6 +172,7 @@ class AppSettings {
   final List<CalendarEvent> syncedEvents;
   final List<String> todoSuggestions;
   final JarvisSettings jarvisSettings;
+  final String googleServerClientId;
 
   factory AppSettings.fromJson(Map<String, dynamic> json) {
     final rawPeople = json['people'];
@@ -204,6 +208,8 @@ class AppSettings {
       jarvisSettings: rawJarvisSettings is Map<String, dynamic>
           ? JarvisSettings.fromJson(rawJarvisSettings)
           : JarvisSettings.defaults(),
+      googleServerClientId:
+          json['googleServerClientId'] as String? ?? googleCalendarServerClientId,
     );
   }
 
@@ -216,6 +222,7 @@ class AppSettings {
     'syncedEvents': syncedEvents.map((event) => event.toJson()).toList(),
     'todoSuggestions': todoSuggestions,
     'jarvisSettings': jarvisSettings.toJson(),
+    'googleServerClientId': googleServerClientId,
   };
 }