refactor: rename project to MedAssist-ng and update configurations

- Updated environment variables in .env.example for production setup.
- Changed project references from MedAssist to MedAssist-ng in documentation and code.
- Adjusted Docker configurations for new image names and ports.
- Removed deprecated push-images.sh script and added docker-compose.dev.yml for development.
- Updated translation files to reflect new project name.
- Ensured all email notifications and headers reflect the new branding.

frontend/src/i18n/index.ts

@@ -23,7 +23,7 @@ i18n
     detection: {
       order: ['localStorage', 'navigator'],
       caches: ['localStorage'],
-      lookupLocalStorage: 'medassist-language',
+      lookupLocalStorage: 'medassist-ng-language',
     },
   });