Add new translation variable for video conferencing in musdb

backend/en/more.json

@@ -0,0 +1,7 @@
+{
+    "tlMore": {
+        "video_conference": "Video conference",
+        "please_select_an_institution": "Please select an institution",
+        "please_select_an_institution_explica": "Please select an institution whose videochat you want to join. You can select one by clicking on the corresponding entry in the drop down menu below."
+    }
+}