Improve reducer type

app/soapbox/features/groups/__tests__/pending-requests.test.tsx

@@ -24,7 +24,6 @@ const store: any = {
   },
   instance: normalizeInstance({
     version: '3.4.1 (compatible; TruthSocial 1.0.0)',
-    software: 'TRUTHSOCIAL',
   }),
 };
 

app/soapbox/reducers/index.ts

@@ -187,7 +187,7 @@ const accountsSelector = createSelector(
 const extendedRootReducer = (
   state: InferState<typeof appReducer>,
   action: AnyAction,
-): ReturnType<typeof rootReducer> & { accounts: ReturnType<typeof accountsSelector> } => {
+): ReturnType<typeof rootReducer> => {
   const extendedState = rootReducer(state, action);
   return extendedState.set('accounts', accountsSelector(extendedState));
 };