v1.1.0 - Frontend Design Customizer & External JSON Backups

This release significantly improves the flexibility of the plugin by adding external data recovery options and a native UI styling engine for the frontend layout.

✨ New Features

• UI Design Customizer: Added a new "Design Customization" tab to Submissions > Settings. You can now inject custom CSS properties (text colors, background borders, alphas) directly into the shortcode elements without altering your theme's files or needing CSS knowledge. Form inputs will now instantly adapt to your website's main colors.
• External JSON Backup System: Added a new action to upload and parse external JSON snapshot files natively from the Submissions > Backups view. Missing records gracefully migrate into the user database without overwriting existing entries.

🌐 i18n & Localization

• The new settings and upload system menus have been fully translated and pushed into .po and .mo catalogs for French, German, Spanish, and Italian languages.

📚 Documentation Updates

• Substantial updates to README.md and AGENTS.md to formally document the Frontend Customizer behavior, the new Backup Upload mechanic, and the external UI classes.