Fix ESLint errors in React component templates for React 19

- Disable react/prop-types rule for template files (React 19 doesn't need PropTypes)
- Add React import to template components that use JSX
- Remove unused useState import from Redux template
- Fix minor RuboCop spacing issue in test

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

eslint.config.ts

@@ -152,6 +152,8 @@ const config = tsEslint.config([
       'import/no-unresolved': 'off',
       // We have `const [name, setName] = useState(props.name)` so can't just destructure props
       'react/destructuring-assignment': 'off',
+      // React 19 doesn't need PropTypes - we're targeting modern React
+      'react/prop-types': 'off',
     },
   },
   {

lib/generators/react_on_rails/templates/base/base/app/javascript/src/HelloWorld/ror_components/HelloWorld.client.jsx

@@ -1,4 +1,4 @@
-import { useState } from 'react';
+import React, { useState } from 'react';
 import * as style from './HelloWorld.module.css';
 
 const HelloWorld = (props) => {

lib/generators/react_on_rails/templates/redux/base/app/javascript/bundles/HelloWorld/components/HelloWorld.jsx

@@ -1,4 +1,4 @@
-import { useState } from 'react';
+import React from 'react';
 import * as style from './HelloWorld.module.css';
 
 const HelloWorld = ({ name, updateName }) => (

spec/react_on_rails/dev/file_manager_spec.rb

@@ -41,7 +41,7 @@
         allow_any_instance_of(Object).to receive(:puts)
 
         result = described_class.cleanup_stale_files
-        expect(result).to be_truthy  # Accept any truthy value
+        expect(result).to be_truthy # Accept any truthy value
       end
 
       it "does not remove socket files when they don't exist" do