Can update email settings

lib/models/general_settings.dart

@@ -12,7 +12,7 @@ class GeneralSettings {
   final UserPageVisibility pageVisibility;
   final bool allowComments;
   final bool allowPostsFromFriends;
-  final bool allowComunicEmails;
+  bool allowComunicEmails;
   final bool publicFriendsList;
   final String virtualDirectory;
   final String personalWebsite;
@@ -36,7 +36,7 @@ class GeneralSettings {
         assert(pageVisibility != null),
         assert(allowComments != null),
         assert(allowPostsFromFriends != null),
-        assert(allowComunicEmails),
+        assert(allowComunicEmails != null),
         assert(publicFriendsList != null),
         assert(virtualDirectory != null),
         assert(personalWebsite != null),

lib/ui/routes/account_settings/general_account_settings.dart

@@ -98,6 +98,16 @@ class __GeneralAccountSettingsBodyState
         },
         checkInput: (s) => s.length >= 3,
       ),
+
+      // Emails settings
+      SettingsTile.switchTile(
+        title: tr("Allow comunic to send emails"),
+        onToggle: (s) {
+          _settings.allowComunicEmails = s;
+          _updateSettings();
+        },
+        switchValue: _settings.allowComunicEmails,
+      ),
     ];
   }