fix(deps): update angularmaterial monorepo to v8

Author: renovate-bot

package-lock.json

@@ -39,12 +39,12 @@
   "private": true,
   "dependencies": {
     "@angular/animations": "7.2.15",
-    "@angular/cdk": "7.3.7",
+    "@angular/cdk": "8.2.3",
     "@angular/common": "7.2.15",
     "@angular/core": "7.2.15",
     "@angular/forms": "7.2.15",
     "@angular/http": "7.2.15",
-    "@angular/material": "7.3.7",
+    "@angular/material": "8.2.3",
     "@angular/platform-browser": "7.2.15",
     "@angular/platform-browser-dynamic": "7.2.15",
     "@angular/pwa": "0.13.8",