Update allowed-origins.json (#81)

Adding aachen domain url to the white list

Co-authored-by: Chandu Nainala <mailcs76@gmail.com>

Author: hamed-musallam

src/allowed-origins.json

@@ -8,5 +8,6 @@
     "http://test.nmrxiv.org",
     "http://193.196.39.168",
     "http://193.196.39.168:3000",
-    "https://nodejsdev.nmrxiv.org"
-]
+    "https://nodejsdev.nmrxiv.org",
+    "https://landolt.ac.rwth-aachen.de"
+]