feat(topbar): add topbar_overflow_suffix i18n key and use it in overflow pill button

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/messages/de.json

@@ -223,6 +223,12 @@
 	"admin_label_initial_password": "Passwort",
 	"doc_file_error_preview": "Vorschau konnte nicht geladen werden.",
 	"doc_download_title": "Herunterladen",
+	"topbar_back_label": "Zurück zur Dokumentenliste",
+	"topbar_more_actions": "Weitere Aktionen",
+	"topbar_overflow_more": "+{count} weitere",
+	"topbar_overflow_suffix": "weitere",
+	"topbar_overflow_heading": "Weitere Empfänger",
+	"topbar_overflow_show": "{count} weitere Empfänger anzeigen",
 	"doc_tag_filter_title": "Nach {name} filtern",
 	"doc_conversation_title": "Konversation anzeigen",
 	"doc_preview_iframe_title": "Dokumentvorschau",

frontend/messages/en.json

@@ -223,6 +223,12 @@
 	"admin_label_initial_password": "Password",
 	"doc_file_error_preview": "Could not load preview.",
 	"doc_download_title": "Download",
+	"topbar_back_label": "Back to document list",
+	"topbar_more_actions": "More actions",
+	"topbar_overflow_more": "+{count} more",
+	"topbar_overflow_suffix": "more",
+	"topbar_overflow_heading": "More receivers",
+	"topbar_overflow_show": "Show {count} more receivers",
 	"doc_tag_filter_title": "Filter by {name}",
 	"doc_conversation_title": "Show conversation",
 	"doc_preview_iframe_title": "Document Preview",

frontend/messages/es.json

@@ -223,6 +223,12 @@
 	"admin_label_initial_password": "Contraseña",
 	"doc_file_error_preview": "No se pudo cargar la vista previa.",
 	"doc_download_title": "Descargar",
+	"topbar_back_label": "Volver a la lista de documentos",
+	"topbar_more_actions": "Más acciones",
+	"topbar_overflow_more": "+{count} más",
+	"topbar_overflow_suffix": "más",
+	"topbar_overflow_heading": "Más destinatarios",
+	"topbar_overflow_show": "Mostrar {count} destinatarios más",
 	"doc_tag_filter_title": "Filtrar por {name}",
 	"doc_conversation_title": "Ver conversación",
 	"doc_preview_iframe_title": "Vista previa del documento",