Make docs code consistent with fullstack tut code.

docs/source/tutorial/local-state.mdx

@@ -42,7 +42,7 @@ export const typeDefs = gql`
   }
 
   extend type Mutation {
-    addOrRemoveFromCart(id: ID!): [Launch]
+    addOrRemoveFromCart(id: ID!): [ID!]!
   }
 `;
 
@@ -156,8 +156,7 @@ import gql from 'graphql-tag';
 import { Header, Loading } from '../components'; // preserve-line
 import { CartItem, BookTrips } from '../containers'; // preserve-line
 import { RouteComponentProps } from '@reach/router';
-import { QueryResult } from '@apollo/react-common';
-import { GetCartItems } from './__generated__/GetCartItems';
+import * as GetCartItemsTypes from './__generated__/GetCartItems';
 
 export const GET_CART_ITEMS = gql`
   query GetCartItems {
@@ -176,11 +175,9 @@ Next, we call `useQuery` and bind it to our `GetCartItems` query:
 interface CartProps extends RouteComponentProps {}
 
 const Cart: React.FC<CartProps> = () => {
-  const { 
-    data, 
-    loading, 
-    error 
-  }: QueryResult<GetCartItems, any> = useQuery<GetCartItems, any>(GET_CART_ITEMS);
+  const { data, loading, error } = useQuery<
+    GetCartItemsTypes.GetCartItems
+  >(GET_CART_ITEMS);
 
   if (loading) return <Loading />;
   if (error) return <p>ERROR: {error.message}</p>;
@@ -246,7 +243,7 @@ interface AppResolvers extends Resolvers {
 export const resolvers: AppResolvers = { // highlight-line
   Launch: {
     isInCart: (launch: LaunchTileTypes.LaunchTile, _, { cache }): boolean => {
-      const queryResult = cache.readQuery<GetCartItemTypes.GetCartItems, any>({ 
+      const queryResult = cache.readQuery<GetCartItemTypes.GetCartItems>({ 
         query: GET_CART_ITEMS 
       });
       if (queryResult) {

docs/source/tutorial/queries.mdx

@@ -33,7 +33,6 @@ import gql from 'graphql-tag';
 
 import { LaunchTile, Header, Button, Loading } from '../components'; // preserve-line
 import { RouteComponentProps } from '@reach/router';
-import { QueryResult } from '@apollo/react-common';
 import * as GetLaunchListTypes from './__generated__/GetLaunchList';
 
 const GET_LAUNCHES = gql`
@@ -74,10 +73,10 @@ const Launches: React.FC<LaunchesProps> = () => {
     data, 
     loading, 
     error
-  }: QueryResult<
+  } = useQuery<
     GetLaunchListTypes.GetLaunchList, 
     GetLaunchListTypes.GetLaunchListVariables
-  > = useQuery(GET_LAUNCHES);
+  >(GET_LAUNCHES);
 
   if (loading) return <Loading />;
   if (error) return <p>ERROR</p>;
@@ -120,10 +119,10 @@ const Launches: React.FC<LaunchesProps> = () => {
     loading, 
     error, 
     fetchMore // highlight-line
-  }: QueryResult<
+  } = useQuery<
     GetLaunchListTypes.GetLaunchList, 
     GetLaunchListTypes.GetLaunchListVariables
-  > = useQuery(GET_LAUNCHES);
+  >(GET_LAUNCHES);
   // same as above
 }
 ```
@@ -222,7 +221,6 @@ import gql from 'graphql-tag';
 import { Loading, Header, LaunchDetail } from '../components'; // preserve-line
 import { ActionButton } from '../containers'; // preserve-line
 import { RouteComponentProps } from '@reach/router';
-import { QueryResult } from '@apollo/react-common';
 import * as LaunchDetailsTypes from './__generated__/LaunchDetails';
 
 export const GET_LAUNCH_DETAILS = gql`
@@ -261,11 +259,10 @@ const Launch: React.FC<LaunchProps> = ({ launchId }) => {
     data, 
     loading, 
     error 
-  }: QueryResult<
+  } = useQuery<
     LaunchDetailsTypes.LaunchDetails, 
     LaunchDetailsTypes.LaunchDetailsVariables
-  > = useQuery(
-    GET_LAUNCH_DETAILS, 
+  >(GET_LAUNCH_DETAILS, 
     { variables: { launchId } }
   );