feat(task-management): enhance bulk action bar and localization updates

- Added new features to the OptimizedBulkActionBar, including dropdowns for labels and assignees, improving task management capabilities.
- Integrated task template creation functionality for owners/admins, allowing users to create templates from selected tasks.
- Updated localization files for multiple languages, adding new strings for label searching and template name requirements to enhance user experience.
- Refactored LabelsDropdown component to support label filtering and improved UI feedback for label creation.

worklenz-frontend/public/locales/es/tasks/task-table-bulk-actions.json

@@ -17,7 +17,9 @@
     "createTaskTemplate": "Crear plantilla de tarea",
     "apply": "Aplicar",
     "createLabel": "+ Crear etiqueta",
+    "searchOrCreateLabel": "Buscar o crear etiqueta...",
     "hitEnterToCreate": "Presione Enter para crear",
+    "labelExists": "La etiqueta ya existe",
     "pendingInvitation": "Invitación Pendiente",
     "noMatchingLabels": "No hay etiquetas coincidentes",
     "noLabels": "Sin etiquetas",