Bartosz

Finished the first proper version. You can now upload files both ways (it took way too much of debugging, cause files with messages are counted as as both file attachment and a message -_-). Also fixed some earlier bugs which I found along with @Hubert and made removing messages a little more safe (rate limits kill me as always).

IT WORKS
I fixed the delete button (completed threads were breaking), added command /fdchat instead of writing !fdchat in the channel.
And most importantly - I moved the data from dictionary to Airtable. Thanks to that previous conversations are remembered and can be continued/deleted/mark as completed.
Also hosted the bot on Nest, it errored out only one time!