Switch to SQLite3, Upgrade Ruby and Rails, Remove Unused Gems, and Add Fly.io Deployment Configuration

[cirdes]

New server: https://rbui.fly.dev

This PR includes the following updates and changes:

1. Database Switch:

   • Removed PostgreSQL and Redis, and switched to SQLite3 for simpler web stack.

2. Version Upgrades:

   • Updated Ruby to version 3.3.4.
   • Updated Rails to version 7.2.0.beta3.

3. Asset Pipeline Update:

   • Removed Sprockets and added Propshaft for managing assets.

4. Removed Unused Gems:

   • Removed the following unused gems:
     • stripe
     • letter_opener (development group)
     • postmark-rails (used in production)
     • octokit (version ~> 5.0)
     • faraday-retry (version ~> 2.0) - used for API calls failing in the octokit gem
     • rack-www - used to redirect www to non-www subdomain
     • rollbar

5. Deployment Configuration:

   • Added configuration for deployment on Fly.io.

These changes streamline the project dependencies, simplify development, and prepare the application for deployment on Fly.io.

[cirdes]

@iseth, I have removed the ".tool-versions" file and fixed the comment in the Gemfile.

All other issues you mentioned were generated by the fly.io CLI, and I believe they are recommended by Yarn.

Let me know if you need anything else!

[iseth]

@iseth, I have removed the ".tool-versions" file and fixed the comment in the Gemfile.

All other issues you mentioned were generated by the fly.io CLI, and I believe they are recommended by Yarn.

Let me know if you need anything else!

I dig too deep into this but i think its definetly coming from https://github.com/fly-apps/dockerfile-rails/blob/2711cf5aab3716c3dafd1c08307ee62107a45dda/lib/generators/templates/_npm_install.erb

[cirdes]

@iseth, I have removed .yarn/* and .yarnrc and added them to .gitignore.