chore: update react imports

Signed-off-by: Paul Schultz <pschultz@pobox.com>

plugins/kubernetes/src/KubernetesContent.test.tsx

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import React from 'react';
 import { screen } from '@testing-library/react';
 import {
   mockApis,

plugins/kubernetes/src/KubernetesContent.tsx

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import React from 'react';
+import { ReactNode } from 'react';
 import Grid from '@material-ui/core/Grid';
 import Typography from '@material-ui/core/Typography';
 import { Entity } from '@backstage/catalog-model';
@@ -40,7 +40,7 @@ import { RequireKubernetesPermissions } from './RequireKubernetesPermissions';
 type KubernetesContentProps = {
   entity: Entity;
   refreshIntervalMs?: number;
-  children?: React.ReactNode;
+  children?: ReactNode;
 };
 
 export const KubernetesContent = ({

plugins/kubernetes/src/RequireKubernetesPermissions.tsx

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React, { ReactNode } from 'react';
+import { ReactNode } from 'react';
 import {
   kubernetesClustersReadPermission,
   kubernetesResourcesReadPermission,

plugins/kubernetes/src/Router.tsx

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import React from 'react';
 import { Entity } from '@backstage/catalog-model';
 import {
   useEntity,

plugins/kubernetes/src/alpha/KubernetesContentPage.tsx

@@ -16,7 +16,6 @@
 
 import { useEntity } from '@backstage/plugin-catalog-react';
 import { KubernetesContent } from '../KubernetesContent';
-import React from 'react';
 
 export function KubernetesContentPage() {
   const { entity } = useEntity();

plugins/kubernetes/src/alpha/entityContents.tsx

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import React from 'react';
 import { compatWrapper } from '@backstage/core-compat-api';
 import { EntityContentBlueprint } from '@backstage/plugin-catalog-react/alpha';
 import { isKubernetesAvailable } from '../Router';

plugins/kubernetes/src/alpha/pages.tsx

@@ -14,9 +14,7 @@
  * limitations under the License.
  */
 
-import React from 'react'; // Add this line to import React
-
-import { PageBlueprint } from '@backstage/frontend-plugin-api';
+import { PageBlueprint } from '@backstage/frontend-plugin-api'; // Add this line to import React
 import {
   compatWrapper,
   convertLegacyRouteRef,