fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - @angular/common from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/common
  - @angular/compiler from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/compiler
  - @angular/core from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/core
  - @angular/forms from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/forms
  - @angular/http from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/http
  - @angular/platform-browser from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/platform-browser
  - @angular/platform-browser-dynamic from 5.2.1 to 5.2.11.
    See this package in NPM: https://www.npmjs.com/package/@angular/platform-browser-dynamic

See this project in Snyk:
https://app.snyk.io/org/marcusasplund/project/475ed275-e380-4f99-b9c1-3d111522f528?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package.json

@@ -10,14 +10,14 @@
     "ionic:serve": "ionic-app-scripts serve"
   },
   "dependencies": {
-    "@angular/common": "5.2.1",
-    "@angular/compiler": "5.2.1",
+    "@angular/common": "5.2.11",
+    "@angular/compiler": "5.2.11",
     "@angular/compiler-cli": "8.2.14",
-    "@angular/core": "5.2.1",
-    "@angular/forms": "5.2.1",
-    "@angular/http": "5.2.1",
-    "@angular/platform-browser": "5.2.1",
-    "@angular/platform-browser-dynamic": "5.2.1",
+    "@angular/core": "5.2.11",
+    "@angular/forms": "5.2.11",
+    "@angular/http": "5.2.11",
+    "@angular/platform-browser": "5.2.11",
+    "@angular/platform-browser-dynamic": "5.2.11",
     "@ionic-native/camera": "5.22.0",
     "@ionic-native/core": "4.20.0",
     "@ionic-native/splash-screen": "4.20.0",