Update package.json material-ui 4.12.1

Change-Id: I949ae763e431a65af90714444cccdc7244bdb703

jams-react-client/package.json

@@ -6,7 +6,7 @@
   "main": "dist/index.js",
   "dependencies": {
     "@lingui/react": "^2.9.2",
-    "@material-ui/core": "4.10.0",
+    "@material-ui/core": "4.12.1",
     "@material-ui/icons": "4.9.1",
     "@material-ui/lab": "^4.0.0-alpha.56",
     "axios": "^0.19.2",

jams-server/build-ui.sh

 #!/bin/bash
 #Build the UI from the react js folder.
 cd ../jams-react-client || exit
+echo "Using Node version: "
+nvm -v
 npm install
 npm run build
 #Now the UI is built we can exit and copy resource