Add note when buttons expire #118

When using commands such as .twlsettings, buttons will appear below the embed text that are necessary for the function of the command. These buttons expire after a bit, though.

If the intended user doesn't see the message and interact with the buttons before they expire, it just looks confusing with the way it's currently setup:

So, after the buttons expire it should add a message to the bottom of the embedded text that says something along the lines of Interaction timed out. Re-run the command to interact.

Alternatively, you could just have the buttons not time out (so quickly).