fix: code improvements

Author: Wojtach

ios/CblReactnative.swift

@@ -146,11 +146,8 @@ class CblReactnative: RCTEventEmitter {
           resultData.setValue(token, forKey: "token")
           resultData.setValue(change.documentID, forKey: "documentId")
 
-          let collectionData = NSMutableDictionary()
-          collectionData.setValue(collection.name, forKey: "name")
-          collectionData.setValue(collection.scope.name, forKey: "scopeName") 
-          collectionData.setValue(args.databaseName, forKey: "databaseName")
-          resultData.setValue(collectionData, forKey: "collection")
+          let collectionDict = DataAdapter.shared.adaptCollectionToNSDictionary(collection, databaseName: args.databaseName)
+          resultData.setValue(collectionDict, forKey: "collection")
 
           resultData.setValue(change.database.name, forKey: "database")
 

src/CblReactNativeEngine.tsx

@@ -170,7 +170,12 @@ export class CblReactNativeEngine implements ICoreEngine {
       ).then(
         () => resolve(),
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
-        (error: any) => reject(error)
+        (error: any) => {
+          this._emitterSubscriptions.delete(token);
+          this._collectionChangeListeners.delete(token);
+          subscription.remove();
+          reject(error);
+        }
       );
     });
   }