Custom 404 and 500 error pages

[Timilehin08]

What type of PR is this? (check all applicable)

• [] Feature

• [] Refactor

• [] Bug Fix

• Optimization

• [] Documentation Update

• Other (describe: Styling )

Description of what PR does

• Removes 404 and 500 html file in Public folder and Generates a new ErrorsController that inherits from ApplicationController with command rails g controller errors not_found internal_server_error.
• Configures Routes to Handle New Errors Page in config/routes.rb.
• Adjusts configuration to turn off the default way Rails will handle errors in the main application.rb file.
• Disables configuration in config/environments/development.rb in order to test things out locally.
• Styles, edits and adjusts the views within app/views/errors accordingly.

Related PRs and/or Issues (if any)

• 404 and 500 error pages  #24

QA Instructions, Screenshots, Recordings

For example, go to http://127.0.0.1:3000/sss to see how error page looks like.
https://web-crunch.com/posts/custom-error-page-ruby-on-rails

Added tests?

• yes
• no, because they aren't needed (please include reasons for why tests aren't needed)
• no, because I need help
• no, they will be added later (please create an Issue for it)

Added to documentation?

• Yes, project README
• No documentation needed

[Timilehin08]

Hello everyone! I had to create another branch and this PR because resolving the conflict on the other branch/PR was becoming way too problematic than it should be.

[GabrielleEaston]

Works as expected in the local environment! Thanks, @Timilehin08. Great styling 😁