Command feedback

[Phobez]

Added and changed feedback messages according to issue #3 and existing TODOs.

[Aechylus]

Non breaking change in general. Though, the more I think about it, the more I'm leaning towards having the messages in TMConstants as a static function instead; that way, we can specify the arguments to the messages explicitly, rather than relying on the %s in the string format. Plus, we can introduce logic in the String generation, i.e. calling helper function addErrorColor() or something like that.

[Phobez]

Should that be done as part of this PR or after this PR though?

[Phobez]

Posting this here from a WA chat for posterity.

[3:46 pm, 01/10/2021] Aechylus: We can make it a separate PR if you wanna make the history cleaner and more traceable
[3:47 pm, 01/10/2021] Phobez: Then I'll make it a separate PR with its own issue

Non breaking change in general. Though, the more I think about it, the more I'm leaning towards having the messages in TMConstants as a static function instead; that way, we can specify the arguments to the messages explicitly, rather than relying on the %s in the string format. Plus, we can introduce logic in the String generation, i.e. calling helper function addErrorColor() or something like that.

Therefore, this'll be a separate issue and PR.