fix linting issues

src/app/core/shared/operators.ts

@@ -126,9 +126,8 @@ export const getFirstOccurrence = () =>
       map((rd) => Object.assign(rd, { payload: rd.payload.page.length > 0 ? rd.payload.page[0] : undefined }))
     );
 
-
 export const obsLog = (logString?: string) =>
   <T>(source: Observable<T>): Observable<T> =>
     source.pipe(
       tap((t) => console.log(logString || '', t))
-    );
+    );