fix(package): update react-intl to version 3.0.0 (#548)

Author: greenkeeper[bot]

package.json

@@ -101,7 +101,7 @@
     "react-dom": "16.8.1",
     "react-helmet": "^5.2.1",
     "react-highlight-words": "^0.16.0",
-    "react-intl": "2.8.0",
+    "react-intl": "3.0.0",
     "react-json-view": "1.19.1",
     "react-masonry-component": "^6.0.1",
     "react-resize-detector": "4.0.5",