feat: add potato when reacting to message

[vladanpaunovic]

Closes #4

I couldn't find a way to test this. I am fairly confident that this works. 😄

So if anyone can test this before merging it would be a great help.

[tobias-wilfert]

Looks good, will take some time for this to get in production though since we need to add the reaction_added scope to the bot which means that the app will need to be re authorised.

[vladanpaunovic]

Looks good, will take some time for this to get in production though since we need to add the reaction_added scope to the bot which means that the app will need to be re authorised.

True. It would be cool if someone can test this locally to make sure this works as expected as I coded it without any feedback.

[cleptric]

@tobias-wilfert @vladanpaunovic I pushed some changes.

How they work
Adding a taco reaction will give any person mentioned in a message a taco. If nobody is mentioned in a message, then the message author will receive a taco.

I personally do not like how HeyTaco implemented their reaction feature in terms of UX, so right now, we only award a potato to the creator of the message instead of giving out potato to all people mentioned in the message. This is ofc up for debate.
The way I made this work is super hacky, but it was/is a hackweek project... 🥸

I also added blaming people if they are selfish and give potato to themselves 🙈

The remaining changes are housekeeping and the addition of lodash, to be able to compare if two arrays are equal.

[tobias-wilfert]

Very nice work @cleptric and @vladanpaunovic