set PropsWithChildren as explicit type on components

Signed-off-by: Oleg S <97077423+RobotSail@users.noreply.github.com>

plugins/search/src/components/HomePageComponent/HomePageSearchBar.stories.tsx

@@ -18,12 +18,12 @@ import { rootRouteRef, HomePageSearchBar } from '../../plugin';
 import { searchApiRef } from '@backstage/plugin-search-react';
 import { wrapInTestApp, TestApiProvider } from '@backstage/test-utils';
 import { Grid, makeStyles } from '@material-ui/core';
-import React, { ComponentType } from 'react';
+import React, { ComponentType, PropsWithChildren } from 'react';
 
 export default {
   title: 'Plugins/Home/Components/SearchBar',
   decorators: [
-    (Story: ComponentType<{}>) =>
+    (Story: ComponentType<PropsWithChildren<{}>>) =>
       wrapInTestApp(
         <>
           <TestApiProvider

plugins/search/src/components/SearchModal/SearchModal.stories.tsx

@@ -25,7 +25,7 @@ import {
   Paper,
 } from '@material-ui/core';
 import { makeStyles } from '@material-ui/core/styles';
-import React, { ComponentType } from 'react';
+import React, { ComponentType, PropsWithChildren } from 'react';
 import { rootRouteRef } from '../../plugin';
 import {
   SearchBar,
@@ -74,7 +74,7 @@ export default {
   title: 'Plugins/Search/SearchModal',
   component: SearchModal,
   decorators: [
-    (Story: ComponentType<{}>) =>
+    (Story: ComponentType<PropsWithChildren<{}>>) =>
       wrapInTestApp(
         <TestApiProvider
           apis={[[searchApiRef, new MockSearchApi(mockResults)]]}

plugins/search/src/components/SearchType/SearchType.stories.tsx

@@ -18,7 +18,7 @@ import { Grid, Paper } from '@material-ui/core';
 import CatalogIcon from '@material-ui/icons/MenuBook';
 import DocsIcon from '@material-ui/icons/Description';
 import UsersGroupsIcon from '@material-ui/icons/Person';
-import React, { ComponentType } from 'react';
+import React, { ComponentType, PropsWithChildren } from 'react';
 import { SearchType } from './SearchType';
 import { TestApiProvider } from '@backstage/test-utils';
 import {
@@ -31,7 +31,7 @@ export default {
   title: 'Plugins/Search/SearchType',
   component: SearchType,
   decorators: [
-    (Story: ComponentType<{}>) => (
+    (Story: ComponentType<PropsWithChildren<{}>>) => (
       <TestApiProvider apis={[[searchApiRef, new MockSearchApi()]]}>
         <SearchContextProvider>
           <Grid container direction="row">