Implement Authentication with email + password (#343)

* Implement Login screen ui and add RequireNotAuth guard

* Perform login through auth/password-login flow

front/src/modules/auth/states/authFlowUserEmailState.ts

@@ -0,0 +1,6 @@
+import { atom } from 'recoil';
+
+export const authFlowUserEmailState = atom<string>({
+  key: 'authFlowUserEmailState',
+  default: '',
+});