TF-1115 Implement catch exception for EmailDataSource

lib/main/exceptions/cache_exception_thrower.dart

@@ -1,10 +1,9 @@
-import 'package:tmail_ui_user/main/exceptions/cache_exception.dart';
 import 'package:tmail_ui_user/main/exceptions/exception_thrower.dart';
 
 class CacheExceptionThrower extends ExceptionThrower {
 
   @override
   void throwException(dynamic error) {
-    throw UnknownCacheError(message: error.toString());
+    throw error;
   }
 }

lib/main/exceptions/remote_exception_thrower.dart

@@ -32,7 +32,7 @@ class RemoteExceptionThrower extends ExceptionThrower {
           message: errorResponse.description);
       }
     } else {
-      throw UnknownError(message: error.toString());
+      throw error;
     }
   }
 }