Update material-components-web to the latest version 🚀 (#245)

Author: greenkeeper[bot]

package.json

@@ -68,7 +68,7 @@
     "karma-spec-reporter": "^0.0.31",
     "karma-webpack": "^2.0.4",
     "lint-staged": "^4.2.3",
-    "material-components-web": "^0.21.1",
+    "material-components-web": "^0.22.0",
     "mocha": "^3.5.3",
     "mocha-css": "^1.0.1",
     "node-sass": "^4.5.3",