fix: copy by reference (#3517)

* Fixed issue with copy by reference

* Fixed linting issues

---------
Co-authored-by: Martin MacDonald <martinmacdonald@Martins-MacBook-Pro.local>

web/src/store/v1/memo.ts

@@ -17,7 +17,7 @@ export const useMemoStore = create(
     getState: () => get(),
     fetchMemos: async (request: Partial<ListMemosRequest>) => {
       const { memos, nextPageToken } = await memoServiceClient.listMemos(request);
-      const memoMap = get().memoMapByName;
+      const memoMap = { ...get().memoMapByName };
       for (const memo of memos) {
         memoMap[memo.name] = memo;
       }