feat(localization): add new translations for Kanban board sections

- Introduced translations for "untitledSection" and "unmapped" in multiple languages including Albanian, German, English, Spanish, and Portuguese.
- Updated KanbanGroup component to utilize these new translations for improved internationalization support.

worklenz-frontend/public/locales/alb/kanban-board.json

@@ -19,5 +19,7 @@
   "archive": "Arkivo",
 
   "newTaskNamePlaceholder": "Shkruaj emrin e detyrës",
-  "newSubtaskNamePlaceholder": "Shkruaj emrin e nëndetyrës"
+  "newSubtaskNamePlaceholder": "Shkruaj emrin e nëndetyrës",
+  "untitledSection": "Seksion pa titull",
+  "unmapped": "Pa hartë"
 }

worklenz-frontend/public/locales/de/kanban-board.json

@@ -19,5 +19,7 @@
   "archive": "Archivieren",
 
   "newTaskNamePlaceholder": "Aufgabenname eingeben",
-  "newSubtaskNamePlaceholder": "Unteraufgabenname eingeben"
+  "newSubtaskNamePlaceholder": "Unteraufgabenname eingeben",
+  "untitledSection": "Unbenannter Abschnitt",
+  "unmapped": "Nicht zugeordnet"
 }

worklenz-frontend/public/locales/en/kanban-board.json

@@ -19,5 +19,7 @@
   "archive": "Archive",
 
   "newTaskNamePlaceholder": "Write a task Name",
-  "newSubtaskNamePlaceholder": "Write a subtask Name"
+  "newSubtaskNamePlaceholder": "Write a subtask Name",
+  "untitledSection": "Untitled section",
+  "unmapped": "Unmapped"
 }

worklenz-frontend/public/locales/es/kanban-board.json

@@ -19,5 +19,7 @@
   "archive": "Archivar",
 
   "newTaskNamePlaceholder": "Escribe un nombre de tarea",
-  "newSubtaskNamePlaceholder": "Escribe un nombre de subtarea"
+  "newSubtaskNamePlaceholder": "Escribe un nombre de subtarea",
+  "untitledSection": "Sección sin título",
+  "unmapped": "Sin asignar"
 }

worklenz-frontend/public/locales/pt/kanban-board.json

@@ -19,5 +19,7 @@
   "archive": "Arquivar",
 
   "newTaskNamePlaceholder": "Escreva um nome de tarefa",
-  "newSubtaskNamePlaceholder": "Escreva um nome de subtarefa"
+  "newSubtaskNamePlaceholder": "Escreva um nome de subtarefa",
+  "untitledSection": "Seção sem título",
+  "unmapped": "Não mapeado"
 }