src: Run codemods and lint

Run `npx @patternfly/pf-codemods@latest src --v6 --fix` and lint autofix to get the bulk of the changes in.

src/Components/Cockpit/NotReady.tsx

@@ -5,8 +5,6 @@ import {
   EmptyState,
   EmptyStateActions,
   EmptyStateFooter,
-  EmptyStateHeader,
-  EmptyStateIcon,
   EmptyStateVariant,
 } from '@patternfly/react-core';
 import { CubesIcon } from '@patternfly/react-icons';
@@ -14,12 +12,12 @@ import cockpit from 'cockpit';
 
 export const NotReady = ({ enabled }: { enabled: boolean }) => {
   return (
-    <EmptyState variant={EmptyStateVariant.xl}>
-      <EmptyStateHeader
-        titleText={`OSBuild Composer is not ${enabled ? 'started' : 'enabled'}`}
-        headingLevel="h4"
-        icon={<EmptyStateIcon icon={CubesIcon} />}
-      />
+    <EmptyState
+      headingLevel="h4"
+      icon={CubesIcon}
+      titleText={`OSBuild Composer is not ${enabled ? 'started' : 'enabled'}`}
+      variant={EmptyStateVariant.xl}
+    >
       <EmptyStateFooter>
         <EmptyStateActions>
           <Button

src/Components/Cockpit/RequireAdmin.tsx

@@ -3,20 +3,18 @@ import React from 'react';
 import {
   EmptyState,
   EmptyStateBody,
-  EmptyStateHeader,
-  EmptyStateIcon,
   EmptyStateVariant,
 } from '@patternfly/react-core';
 import { LockIcon } from '@patternfly/react-icons';
 
 export const RequireAdmin = () => {
   return (
-    <EmptyState variant={EmptyStateVariant.xl}>
-      <EmptyStateHeader
-        titleText="Access is limited."
-        headingLevel="h4"
-        icon={<EmptyStateIcon icon={LockIcon} color="#f4c145" />}
-      />
+    <EmptyState
+      headingLevel="h4"
+      icon={LockIcon}
+      titleText="Access is limited."
+      variant={EmptyStateVariant.xl}
+    >
       <EmptyStateBody>
         Administrative access is required to run the Image Builder frontend.
         Click on the icon in the toolbar to grant administrative access.