feat(localization): update and enhance localization files for multiple languages

- Updated localization files for various languages, including English, German, Spanish, Portuguese, and Chinese, to ensure consistency and accuracy across the application.
- Added new keys and updated existing ones to support recent UI changes and features, particularly in project views, task lists, and admin center settings.
- Enhanced the structure of localization files to improve maintainability and facilitate future updates.
- Implemented performance optimizations in the frontend components to better handle localization data.

worklenz-backend/src/controllers/holiday-controller.ts

@@ -348,8 +348,8 @@ export default class HolidayController extends WorklenzControllerBase {
             totalPopulated++;
           }
         }
-      } catch (error) {
-        errors.push(`${country.name}: ${error.message}`);
+      } catch (error: any) {
+        errors.push(`${country.name}: ${error?.message || "Unknown error"}`);
       }
     }