Add the direction of the vote to the toast

[flofriday]

As jonas-w mentioned in #161 the voting direction (upvote, downvote or vote removing) isn't mentioned in the toast. To give better feedback of the action taken this commit now includes them. Since the information was already available in the method it was quite straight forward to implement it.

Screenshot:

[flofriday]

We could also put emojis into the toast, but I know not everybody is a fan of that. 🤔

[SimonHalvdansson]

This is nice, thanks!