fix: some example using firebase

[yvmunayev]

this examples are crashing:

• http://localhost:5555/?path=/story/modules-demos-stories-signupwithgoogle--basic
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--use-firebase-app
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--subcribe-to-collection-applying-query
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--subcribe-to-collection-track
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--getting-current-user
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--getting-current-user-state
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--subscribe-to-doc
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--use-doc-once
• http://localhost:5555/?path=/story/modules-firebase-hooks-stories--getting-user-claims