Upgrade React Redux and React

[ervcz]

React 19 migration and dependency updates

This PR implements several changes to prepare for and complete the React 19 migration:

1. React 19 Upgrade:

   • Updated React and React DOM to v19.1.0
   • Updated corresponding TypeScript type definitions
   • Modified test snapshots to accommodate React 19 format changes (replaced colon-based IDs with angle bracket format)

2. TypeScript Improvements:

   • Replaced JSX.Element with more specific ReactElement type
   • Migrated PropTypes to TypeScript interfaces across multiple components
   • Removed deprecated PropTypes imports and declarations

3. Dependency Updates:

   • Upgraded Redux Toolkit from v2.6.1 to v2.8.2
   • Updated react-redux from v7.2.4 to v9.2.0
   • Adjusted snapshot tests for MUI class name changes

4. Cleanup:

   • Removed unused icon prop in GroupList
   • Cleaned up type definitions and component interfaces

How to use

1. Verify all tests pass: npm test
2. Check storybook components for rendering issues: npm run storybook
3. Pay special attention to components that were converted from PropTypes to TypeScript

Testing done

• Ran full test suite: npm run test (all tests pass)
• Verified storybook rendering: npm run storybook (no visual regressions)
• Checked application functionality:
  • Group list rendering and interactions
  • Package management flows
  • Instance list operations
  • Modal dialogs functionality