Refactor FAQ model and update related features

- Enhanced FAQ model with additional validations and scopes for better querying.
- Updated views to utilize partials for rendering FAQs, improving maintainability.
- Adjusted routes to streamline FAQ access and improve user experience.

Author: Shpigford

app/controllers/avo/faqs_controller.rb

@@ -0,0 +1,4 @@
+# This controller has been generated to enable Rails' resource routes.
+# More information on https://docs.avohq.io/3.0/controllers.html
+class Avo::FaqsController < Avo::ResourcesController
+end