Index through chat messages and commands using the arrow keys.

[jmshgs]

Description

You can now index through chat messages and commands using the arrow keys. Fixes #160.

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation comments
• My changes generate no new warnings

[stackotter]

The logic looks fine to me for the most part, I've just left a bunch of suggestions to help you fix up the code's handling of optionals. By the end of applying all the suggestions you should be able to get rid of all of the force unwraps! (and the code will be much simpler too). Feel free to ask about any of the suggestions in the Discord if they're confusing 👍

[stackotter]

Just a few more suggestions to help you improve at handling optionals, I think you'll find the tip at line 175 very useful :)

[stackotter]

Looks great to me! I'll just quickly test it out before merging.

[stackotter]

It works 🎉