Migrations: Signup page (#21514)

* Start Angular migration

* Add SignupCtrl

* Change name signup

* Add backend call

* Put form in separate file

* Add form model

* Start using react-hook-forms

* Add FormModel to state

* Reduxify

* Connect nav with Redux

* Fix routing and navModel

* Fetch state options on mount

* Add default values and add button margin

* Add errror messages

* Fix title

* Remove files and cleanup

* Add Signup tests

* Add boot config assingnAutoOrg and verifyEmailEnabled

* Remove onmount call

* Remove ctrl and move everything to SignupForm

* Make routeParams optional for testing

* Remove name if it is empty

* Set username

* Make function component

* Fix subpath issues and add link button

* Move redux to SignupPage

package.json

@@ -115,6 +115,7 @@
     "mocha": "7.0.1",
     "module-alias": "2.2.0",
     "monaco-editor": "0.15.6",
+    "mutationobserver-shim": "0.3.3",
     "ngtemplate-loader": "2.0.1",
     "node-sass": "4.13.1",
     "npm": "6.13.4",