New translations en.json (Danish)

packages/excalidraw/locales/da-DK.json

@@ -110,6 +110,7 @@
     "showStroke": "",
     "showBackground": "",
     "toggleTheme": "",
+    "theme": "",
     "personalLib": "",
     "excalidrawLib": "",
     "decreaseFontSize": "",
@@ -180,6 +181,7 @@
     "fullScreen": "Fuld skærm",
     "darkMode": "Mørk tilstand",
     "lightMode": "Lys baggrund",
+    "systemMode": "",
     "zenMode": "Zentilstand",
     "objectsSnapMode": "",
     "exitZenMode": "Stop zentilstand",