fix: catch crash of fg service (#669)

ios/Podfile.lock

@@ -6,6 +6,13 @@ PODS:
   - file_picker (0.0.1):
     - Flutter
   - Flutter (1.0.0)
+  - flutter_inappwebview_ios (0.0.1):
+    - Flutter
+    - flutter_inappwebview_ios/Core (= 0.0.1)
+    - OrderedSet (~> 6.0.3)
+  - flutter_inappwebview_ios/Core (0.0.1):
+    - Flutter
+    - OrderedSet (~> 6.0.3)
   - flutter_native_splash (2.4.3):
     - Flutter
   - icloud_storage (0.0.1):
@@ -13,6 +20,7 @@ PODS:
   - local_auth_darwin (0.0.1):
     - Flutter
     - FlutterMacOS
+  - OrderedSet (6.0.3)
   - package_info_plus (0.4.5):
     - Flutter
   - path_provider_foundation (0.0.1):
@@ -31,15 +39,13 @@ PODS:
     - Flutter
   - watch_connectivity (0.0.1):
     - Flutter
-  - webview_flutter_wkwebview (0.0.1):
-    - Flutter
-    - FlutterMacOS
 
 DEPENDENCIES:
   - app_links (from `.symlinks/plugins/app_links/ios`)
   - camera_avfoundation (from `.symlinks/plugins/camera_avfoundation/ios`)
   - file_picker (from `.symlinks/plugins/file_picker/ios`)
   - Flutter (from `Flutter`)
+  - flutter_inappwebview_ios (from `.symlinks/plugins/flutter_inappwebview_ios/ios`)
   - flutter_native_splash (from `.symlinks/plugins/flutter_native_splash/ios`)
   - icloud_storage (from `.symlinks/plugins/icloud_storage/ios`)
   - local_auth_darwin (from `.symlinks/plugins/local_auth_darwin/darwin`)
@@ -51,7 +57,10 @@ DEPENDENCIES:
   - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
   - wakelock_plus (from `.symlinks/plugins/wakelock_plus/ios`)
   - watch_connectivity (from `.symlinks/plugins/watch_connectivity/ios`)
-  - webview_flutter_wkwebview (from `.symlinks/plugins/webview_flutter_wkwebview/darwin`)
+
+SPEC REPOS:
+  trunk:
+    - OrderedSet
 
 EXTERNAL SOURCES:
   app_links:
@@ -62,6 +71,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/file_picker/ios"
   Flutter:
     :path: Flutter
+  flutter_inappwebview_ios:
+    :path: ".symlinks/plugins/flutter_inappwebview_ios/ios"
   flutter_native_splash:
     :path: ".symlinks/plugins/flutter_native_splash/ios"
   icloud_storage:
@@ -84,17 +95,17 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/wakelock_plus/ios"
   watch_connectivity:
     :path: ".symlinks/plugins/watch_connectivity/ios"
-  webview_flutter_wkwebview:
-    :path: ".symlinks/plugins/webview_flutter_wkwebview/darwin"
 
 SPEC CHECKSUMS:
   app_links: e7a6750a915a9e161c58d91bc610e8cd1d4d0ad0
   camera_avfoundation: dd002b0330f4981e1bbcb46ae9b62829237459a4
   file_picker: c79185e70b9b45728cde2a8d8da454e0cb43f287
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
+  flutter_inappwebview_ios: 6f63631e2c62a7c350263b13fa5427aedefe81d4
   flutter_native_splash: e8a1e01082d97a8099d973f919f57904c925008a
   icloud_storage: d9ac7a33ced81df08ba7ea1bf3099cc0ee58f60a
   local_auth_darwin: 66e40372f1c29f383a314c738c7446e2f7fdadc3
+  OrderedSet: e539b66b644ff081c73a262d24ad552a69be3a94
   package_info_plus: c0502532a26c7662a62a356cebe2692ec5fe4ec4
   path_provider_foundation: 2b6b4c569c0fb62ec74538f866245ac84301af46
   plain_notification_token: b36467dc91939a7b6754267c701bbaca14996ee1
@@ -103,7 +114,6 @@ SPEC CHECKSUMS:
   url_launcher_ios: 5334b05cef931de560670eeae103fd3e431ac3fe
   wakelock_plus: 78ec7c5b202cab7761af8e2b2b3d0671be6c4ae1
   watch_connectivity: 715eb484685e05846eab74795348a44bb2809b82
-  webview_flutter_wkwebview: 0982481e3d9c78fd5c6f62a002fcd24fc791f1e4
 
 PODFILE CHECKSUM: ec6ef69056f066e8b21a3391082f23b5ad2d37f8