Update version to 1.1.0 and enhance documentation

- Bumped version from 1.0.1 to 1.1.0 in package.json and UI
- Updated USER_GUIDE.md with new features in v1.1.0
- Enhanced DEVELOPERS.md with:
  - Information about reusable components (ActionButton, Section)
  - Documentation for type-safe utilities
  - Code examples for performance optimizations
  - Updated best practices
  - Added information about the improved project structure

🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>

src/taskpane/components/App.tsx

@@ -193,7 +193,7 @@ const App: React.FC<AppProps> = () => {
         )}
         
         <div className={styles.footer}>
-          <Text size={100}>Edison • v1.0.1</Text>
+          <Text size={100}>Edison • v1.1.0</Text>
         </div>
       </div>
     </StatusContext.Provider>