Reverted the homepage in package.json, since it is used to determine paths in static resources.

gui/package.json

@@ -57,5 +57,5 @@
     "eslint-plugin-standard": "^3.1.0",
     "serve": "^10.0.0"
   },
-  "homepage": "https://gitlab.mpcdf.mpg.de/nomad-lab/nomad-FAIR"
+  "homepage": "http://example.com/fairdi/nomad/latest/gui"
 }