Add proper manisfest...

SAS/TMSS/frontend/tmss_webapp/public/manifest.json

 {
-  "short_name": "React App",
-  "name": "Create React App Sample",
+  "short_name": "TMSS",
+  "description": "An Application for managing observations for Lofar I / II ",
+  "category":"productivity",
+  "name": "TMSS for Lofar",
   "icons": [
     {
       "src": "favicon.ico",