Replace prices with contact form

[henmohr]

Replace prices with button to get in contact.

[vitormattos]

• The contact form uses a captcha service. That requires the nginx default.conf currently used by the captcha service on our server. If you remove the nginx rules that route requests to PHP, then when we pull main on the server the captcha, and likely the contact form, will stop working. (see: https://github.com/LibreSign/site/tree/main/suitecrm-form-middleware)

• Files in the lang/ folder should only be changed by our translation tool (Weblate). Weblate is an external service that performs translations and commits them to our repo.

• Compiled assets must not be versioned because they’re generated by the build process; we only track source (non-compiled) code.

• There is an empty .codex file in the repository root.

[henmohr]

I will remake this pr XD