Better error handling for macros

[eritbh]

Currently, the only macro actions that have error handlers are leaving the macro reply and locking/distinguishing/stickying it. All other actions can fail silently (though the unhandled promise rejections should still be logged in the console). We should make a system that lets us keep track of which actions failed and report them all to the user at the same time, rather than calling TBui.textFeedback for everything which only lets us display a single message at a time.