Update react-datetime.

package.json

@@ -13,7 +13,7 @@
     "node-rsa": "^0.4.2",
     "react": "^16.5.2",
     "react-big-calendar": "^0.20.1",
-    "react-datetime": "^2.11.1",
+    "react-datetime": "^2.16.3",
     "react-dom": "^16.4.0",
     "react-redux": "^5.0.6",
     "react-router": "^4.2.0",

yarn.lock

@@ -6974,10 +6974,10 @@ react-big-calendar@^0.20.1:
     uncontrollable "^6.0.0"
     warning "^4.0.2"
 
-react-datetime@^2.11.1:
-  version "2.15.0"
-  resolved "https://registry.yarnpkg.com/react-datetime/-/react-datetime-2.15.0.tgz#a8f7da6c58b6b45dbeea32d4e8485db17614e12c"
-  integrity sha512-RP5OqXVfrhdoFALJzMU8tKxRFaIZzJZqZEpf5oK7pvwG80a/bET/TdJ7jT7W9lyAf1nKNo6zyYkvHW3ZJ/ypvg==
+react-datetime@^2.16.3:
+  version "2.16.3"
+  resolved "https://registry.yarnpkg.com/react-datetime/-/react-datetime-2.16.3.tgz#7f9ac7d4014a939c11c761d0c22d1fb506cb505e"
+  integrity sha512-amWfb5iGEiyqjLmqCLlPpu2oN415jK8wX1qoTq7qn6EYiU7qQgbNHglww014PT4O/3G5eo/3kbJu/M/IxxTyGw==
   dependencies:
     create-react-class "^15.5.2"
     object-assign "^3.0.0"