Captcha utilities

[nofurtherinformation]

Adds utilities for handling captcha for future forms and submissions

Description

• Adds a function to validate captchas based on a token and host path
• Adds a frontend hook with a component and state for doing FE captcha
• Updates environment variable examples and workflows with new variables

Reviewers

• Primary: @raphaellaude
• Secondary:

Checklist

• new FE package import
• FE component
• FE logic
• BE class and util
• Environment and example env file updates
• Documentation on how to get captcha env
• Test?

Screenshots (if applicable):

[raphaellaude]

looking good. lmk when u want a full review

[nofurtherinformation]

Superseded by #432