iOS - app crashes when plugin stop is called #387 (WIP)

Changes:
- added the defensive fix for iOS - app crashes when plugin stop is called #387
- updated some of the example-app dependencies

Author: ryaa

example-app/ios/App/Podfile.lock

@@ -1,11 +1,11 @@
 PODS:
-  - Capacitor (7.3.0):
+  - Capacitor (7.4.0):
     - CapacitorCordova
   - CapacitorApp (7.0.1):
     - Capacitor
   - CapacitorCommunityCameraPreview (7.0.2):
     - Capacitor
-  - CapacitorCordova (7.3.0)
+  - CapacitorCordova (7.4.0)
   - CapacitorHaptics (7.0.1):
     - Capacitor
   - CapacitorKeyboard (7.0.1):
@@ -39,10 +39,10 @@ EXTERNAL SOURCES:
     :path: "../../node_modules/@capacitor/status-bar"
 
 SPEC CHECKSUMS:
-  Capacitor: 8585c18a230122906e114ba5f6325ec65ee1371f
+  Capacitor: 10feab36396883c55373328124a677f118cd4b5f
   CapacitorApp: febecbb9582cb353aed037e18ec765141f880fe9
-  CapacitorCommunityCameraPreview: a45e3974b2f96fbc118d9cde1c8e5990fadf364f
-  CapacitorCordova: 2685f5c43675793b5f06dfd66b3b26268f003b97
+  CapacitorCommunityCameraPreview: d0ccae4cd17aee2061a8c528b417f4a0facbf483
+  CapacitorCordova: 723e017d8a80ab2ede9959fbe37556c35ac860d5
   CapacitorHaptics: 1f1e17041f435d8ead9ff2a34edd592c6aa6a8d6
   CapacitorKeyboard: 09fd91dcde4f8a37313e7f11bde553ad1ed52036
   CapacitorStatusBar: 6e7af040d8fc4dd655999819625cae9c2d74c36f