build(deps): bump xmldom, cordova-android and cordova-browser

Removes [xmldom](https://github.com/xmldom/xmldom). It's no longer used after updating ancestor dependencies [xmldom](https://github.com/xmldom/xmldom), [cordova-android](https://github.com/apache/cordova-android) and [cordova-browser](https://github.com/apache/cordova-browser). These dependencies need to be updated together.


Removes `xmldom`

Updates `cordova-android` from 6.4.0 to 11.0.0
- [Release notes](https://github.com/apache/cordova-android/releases)
- [Changelog](https://github.com/apache/cordova-android/blob/master/RELEASENOTES.md)
- [Commits](apache/cordova-android@6.4.0...11.0.0)

Updates `cordova-browser` from 5.0.3 to 6.0.0
- [Release notes](https://github.com/apache/cordova-browser/releases)
- [Changelog](https://github.com/apache/cordova-browser/blob/master/RELEASENOTES.md)
- [Commits](apache/cordova-browser@5.0.3...6.0.0)

---
updated-dependencies:
- dependency-name: xmldom
  dependency-type: indirect
- dependency-name: cordova-android
  dependency-type: direct:production
- dependency-name: cordova-browser
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -34,8 +34,8 @@
     "angular2-jwt": "^0.2.3",
     "angular2-signaturepad": "^2.7.0",
     "axios": "^0.18.0",
-    "cordova-android": "6.4.0",
-    "cordova-browser": "5.0.3",
+    "cordova-android": "11.0.0",
+    "cordova-browser": "6.0.0",
     "cordova-plugin-actionsheet": "^2.3.3",
     "cordova-plugin-camera": "^4.0.2",
     "cordova-plugin-device": "^2.0.1",