feat(task-filters): enhance localization and UI for task filters

- Added new translation keys for task filter functionalities across multiple languages, improving user experience and accessibility.
- Updated the ImprovedTaskFilters component to utilize localized strings for search placeholders, loading states, and filter messages.
- Enhanced styling for filter buttons and dropdowns to ensure consistency in both light and dark modes.
- Introduced a description column in task management components, improving the display of task details.

worklenz-frontend/src/components/task-list-v2/constants/columns.ts

@@ -17,6 +17,7 @@ export const BASE_COLUMNS = [
   { id: 'checkbox', label: '', width: '28px', isSticky: true, key: 'checkbox' },
   { id: 'taskKey', label: 'keyColumn', width: '100px', key: COLUMN_KEYS.KEY, minWidth: '100px', maxWidth: '150px' },
   { id: 'title', label: 'taskColumn', width: '470px', isSticky: true, key: COLUMN_KEYS.NAME },
+  { id: 'description', label: 'descriptionColumn', width: '260px', key: COLUMN_KEYS.DESCRIPTION },
   { id: 'status', label: 'statusColumn', width: '120px', key: COLUMN_KEYS.STATUS },
   { id: 'assignees', label: 'assigneesColumn', width: '150px', key: COLUMN_KEYS.ASSIGNEES },
   { id: 'priority', label: 'priorityColumn', width: '120px', key: COLUMN_KEYS.PRIORITY },