chore: Update translations (#1502)

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>
Co-authored-by: Yovan Lutfi Arya (Regerta)
Co-authored-by: Matt (duartemvix)
Co-authored-by: vfasoulas
Co-authored-by: Fernando Sousa (fernando)
Co-authored-by: korho

app/javascript/dashboard/i18n/locale/de/conversation.json

@@ -42,7 +42,13 @@
     },
     "VISIBLE_TO_AGENTS": "Privater Hinweis: Nur für Sie und Ihr Team sichtbar",
     "CHANGE_STATUS": "Gesprächsstatus geändert",
-    "CHANGE_AGENT": "Konversationsempfänger geändert"
+    "CHANGE_AGENT": "Konversationsempfänger geändert",
+    "SENT_BY": "Sent by:",
+    "ASSIGNMENT": {
+      "SELECT_AGENT": "Select Agent",
+      "REMOVE": "Entfernen",
+      "ASSIGN": "Assign"
+    }
   },
   "EMAIL_TRANSCRIPT": {
     "TITLE": "Send conversation transcript",