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/src/utils/current-date-string.ts

@@ -4,9 +4,56 @@ import { getLanguageFromLocalStorage } from './language-utils';
 export const currentDateString = (): string => {
   const date = dayjs();
   const localeString = getLanguageFromLocalStorage();
-  const locale = localeString === 'en' ? 'en' : localeString === 'es' ? 'es' : 'pt';
+  
+  // Map language codes to dayjs locales
+  let locale = 'en'; // Default to English
+  switch (localeString) {
+    case 'en':
+      locale = 'en';
+      break;
+    case 'es':
+      locale = 'es';
+      break;
+    case 'pt':
+      locale = 'pt';
+      break;
+    case 'de':
+      locale = 'de';
+      break;
+    case 'zh_cn':
+      locale = 'zh-cn';
+      break;
+    case 'alb':
+      locale = 'sq'; // Albanian locale code for dayjs
+      break;
+    default:
+      locale = 'en';
+  }
+
+  // Get localized "Today is" text
+  let todayText = 'Today is'; // Default English
+  switch (localeString) {
+    case 'en':
+      todayText = 'Today is';
+      break;
+    case 'es':
+      todayText = 'Hoy es';
+      break;
+    case 'pt':
+      todayText = 'Hoje é';
+      break;
+    case 'de':
+      todayText = 'Heute ist';
+      break;
+    case 'zh_cn':
+      todayText = '今天是';
+      break;
+    case 'alb':
+      todayText = 'Sot është';
+      break;
+    default:
+      todayText = 'Today is';
+  }
 
-  const todayText =
-    localeString === 'en' ? 'Today is' : localeString === 'es' ? 'Hoy es' : 'Hoje é';
   return `${todayText} ${date.locale(locale).format('dddd, MMMM DD, YYYY')}`;
 };

worklenz-frontend/src/utils/greetingString.ts

@@ -49,5 +49,16 @@ export const greetingString = (name: string): string => {
     evening = '晚上好';
   }
 
-  return `${greetingPrefix} ${name}, ${greetingSuffix} ${greet}!`;
+  // Get the localized time period based on the current time
+  let localizedTimePeriod;
+  if (greet === 'morning') localizedTimePeriod = morning;
+  else if (greet === 'afternoon') localizedTimePeriod = afternoon;
+  else localizedTimePeriod = evening;
+
+  // Handle Chinese language which has different structure
+  if (language === 'zh_cn') {
+    return `${greetingPrefix} ${name}, ${localizedTimePeriod}!`;
+  }
+
+  return `${greetingPrefix} ${name}, ${greetingSuffix} ${localizedTimePeriod}!`;
 };