fix(package): update @angular/material to version 5.0.2

Closes #116

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
     "@angular/core": "^4.3.6",
     "@angular/forms": "^4.3.6",
     "@angular/http": "^4.3.6",
-    "@angular/material": "^2.0.0-beta.10",
+    "@angular/material": "^5.0.2",
     "@angular/platform-browser": "^4.3.6",
     "@angular/platform-browser-dynamic": "^4.3.6",
     "@angular/platform-server": "^4.3.6",