Remove md5-hex wrapper and use blueimp-md5 directly

ui/package.json

@@ -7,6 +7,7 @@
     "@material-ui/icons": "^4.11.2",
     "@material-ui/lab": "^4.0.0-alpha.57",
     "@material-ui/styles": "^4.11.4",
+    "blueimp-md5": "^2.18.0",
     "clsx": "^1.1.1",
     "connected-react-router": "^6.9.1",
     "deepmerge": "^4.2.2",
@@ -15,7 +16,6 @@
     "jwt-decode": "^3.1.2",
     "lodash.pick": "^4.4.0",
     "lodash.throttle": "^4.1.1",
-    "md5-hex": "^3.0.1",
     "prop-types": "^15.7.2",
     "ra-data-json-server": "^3.15.1",
     "ra-i18n-polyglot": "^3.15.1",