chore(demo): upgraded angular flex-layout to v7.0.0-beta.23

Author: AnthonyNahas

demo/package-lock.json

@@ -32,7 +32,7 @@
     "@angular/common": "7.1.2",
     "@angular/compiler": "7.1.2",
     "@angular/core": "7.1.2",
-    "@angular/flex-layout": "^7.0.0-beta.22",
+    "@angular/flex-layout": "^7.0.0-beta.23",
     "@angular/forms": "7.1.2",
     "@angular/http": "7.1.2",
     "@angular/material": "^7.2.1",
@@ -58,7 +58,7 @@
     "ngx-material-pages": "^1.3.2",
     "rxjs": "^6.3.3",
     "rxjs-compat": "^6.3.3",
-    "zone.js": "^0.8.26"
+    "zone.js": "^0.8.27"
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "^0.11.4",