fix: Footer consistently in loading state (#516)

* Added coponentDidUpdate method to footer

* Retaining lastIndexed value from prev state

* Undo retaining state in same reducer

* removing componentDidUpdate method

* Retaining last index value

amundsen_application/static/js/ducks/tableMetadata/reducer.ts

@@ -309,7 +309,10 @@ export default function reducer(
         },
       };
     case GetTableData.REQUEST:
-      return initialState;
+      return {
+        ...initialState,
+        lastIndexed: state.lastIndexed,
+      };
     case GetTableData.FAILURE:
       return {
         ...state,