feat(task-context-menu): add copy link functionality and update translations

- Implemented a new "Copy link to task" feature in the task context menu, allowing users to easily copy task links to the clipboard.
- Added corresponding success and error messages for link copying.
- Updated localization files for Albanian, German, English, Spanish, Portuguese, and Chinese to include new translation keys for the copy link feature.

worklenz-frontend/public/locales/pt/task-list-table.json

@@ -57,6 +57,9 @@
 
   "contextMenu": {
     "assignToMe": "Atribuir a mim",
+    "copyLink": "Copiar link da tarefa",
+    "linkCopied": "Link copiado para a área de transferência",
+    "linkCopyFailed": "Falha ao copiar o link",
     "moveTo": "Mover para",
     "unarchive": "Desarquivar",
     "archive": "Arquivar",