Enable Flow Strict

src/hooks/index.js

@@ -1,4 +1,4 @@
-// @flow
+// @flow strict
 export { default as useSiteMetadata } from './use-site-metadata';
 export { default as useCategoriesList } from './use-categories-list';
 export { default as useTagsList } from './use-tags-list';

src/hooks/use-categories-list.js

@@ -1,4 +1,4 @@
-// @flow
+// @flow strict
 import { useStaticQuery, graphql } from 'gatsby';
 
 const useCategoriesList = () => {

src/hooks/use-site-metadata.js

@@ -1,4 +1,4 @@
-// @flow
+// @flow strict
 import { useStaticQuery, graphql } from 'gatsby';
 
 const useSiteMetadata = () => {

src/hooks/use-tags-list.js

@@ -1,4 +1,4 @@
-// @flow
+// @flow strict
 import { useStaticQuery, graphql } from 'gatsby';
 
 const useTagsList = () => {