feat(localization): add and update translations for multiple languages

- Introduced new localization files for Albanian, German, Spanish, Portuguese, and Chinese, enhancing the application's multilingual support.
- Added new keys and updated existing translations in project-view, task-list-table, and settings files to improve user experience across different languages.
- Enhanced error handling and empty state messages in task management components to provide clearer feedback to users.
- Updated tooltip texts and button labels for better clarity and consistency in the user interface.

worklenz-frontend/public/locales/zh/settings/sidebar.json

@@ -1,5 +1,6 @@
 {
   "profile": "个人资料",
+  "appearance": "外观",
   "notifications": "通知",
   "clients": "客户",
   "job-titles": "职位",