[IMPROVEMENT] Command-Builder

[beanbeanjuice]

Improvement Description

Instead of the system we have now for editing the welcome and goodbye messages, and instead of using Modals, use a system where the user can input messages via a /input command. This should be a system that can be created from any command. It should be similar to a factory pattern.

This is an example of how it would look;

1. User runs /welcome edit-message
2. A "UI" embed comes up, with a preview of the welcome message, with buttons below asking the user what they would like to edit.
3. User clicks a button, prompting them to use /input to edit that individual part.
4. User can "remove" certain parts of the embed with /input remove.
5. When user is done, click a button to finish.
6. There should be a timer that stops listening to user inputs after around 5 minutes OR if the user runs that command again.

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Checklist

• I have checked for similar issues.
• This is an improvement request, not a feature request, bug report, or security vulnerability report.