Add external links for indexer history

frontend/src/App/State/HistoryAppState.ts

@@ -1,8 +1,10 @@
 import AppSectionState from 'App/State/AppSectionState';
+import Column from 'Components/Table/Column';
 import History from 'typings/History';
 
 interface HistoryAppState extends AppSectionState<History> {
   pageSize: number;
+  columns: Column[];
 }
 
 export default HistoryAppState;