chore: update react imports

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

plugins/kubernetes-cluster/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-cluster/src/components/ApiResources/ApiResources.test.tsx

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React from 'react';
 import { renderInTestApp } from '@backstage/test-utils';
 import { ApiResources } from './ApiResources';
 import '@testing-library/jest-dom';

plugins/kubernetes-cluster/src/components/ApiResources/ApiResources.tsx

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 import { useApiResources } from './useApiResources';
-import React, { useCallback, useEffect } from 'react';
+import { useCallback, useEffect } from 'react';
 import { useEntity } from '@backstage/plugin-catalog-react';
 import { Table, TableColumn } from '@backstage/core-components';
 import { IAPIGroup } from '@kubernetes-models/apimachinery/apis/meta/v1';

plugins/kubernetes-cluster/src/components/ClusterOverview/ClusterOverview.test.tsx

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React from 'react';
 import { renderInTestApp } from '@backstage/test-utils';
 import { ClusterOverview } from './ClusterOverview';
 import '@testing-library/jest-dom';

plugins/kubernetes-cluster/src/components/ClusterOverview/ClusterOverview.tsx

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React, { useCallback, useEffect } from 'react';
+import { useCallback, useEffect } from 'react';
 import { InfoCard, StructuredMetadataTable } from '@backstage/core-components';
 import { useEntity } from '@backstage/plugin-catalog-react';
 import { useCluster } from './useCluster';

plugins/kubernetes-cluster/src/components/KubernetesClusterContent/KubernetesClusterContent.tsx

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React from 'react';
 import { ApiResources } from '../ApiResources/ApiResources';
 import Grid from '@material-ui/core/Grid';
 import Typography from '@material-ui/core/Typography';

plugins/kubernetes-cluster/src/components/KubernetesClusterErrorContext/KubernetesClusterErrorContext.tsx

@@ -13,19 +13,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React, { useCallback, useContext, useState } from 'react';
+import {
+  ReactNode,
+  createContext,
+  useCallback,
+  useContext,
+  useState,
+} from 'react';
 
 export interface ErrorContext {
   error?: string;
   setError: (message: string) => void;
 }
 
-export const KubernetesClusterErrorContext = React.createContext<ErrorContext>({
+export const KubernetesClusterErrorContext = createContext<ErrorContext>({
   setError: (_: string) => {},
 });
 
 export interface KubernetesClusterErrorProviderProps {
-  children: React.ReactNode;
+  children: ReactNode;
 }
 
 export const KubernetesClusterErrorProvider = ({

plugins/kubernetes-cluster/src/components/Nodes/Nodes.test.tsx

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React from 'react';
 import { renderInTestApp } from '@backstage/test-utils';
 import { Nodes } from './Nodes';
 import '@testing-library/jest-dom';

plugins/kubernetes-cluster/src/components/Nodes/Nodes.tsx

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 import { useNodes } from './useNodes';
-import React, { useCallback, useEffect } from 'react';
+import { useCallback, useEffect } from 'react';
 import { useEntity } from '@backstage/plugin-catalog-react';
 import {
   StructuredMetadataTable,