Compiled successfully toasts are stacking

[ncave]

Compiled successfully toasts are stacking high when you compile several times in a row.
Not a breaking issue, more of an enhancement, perhaps compile notifications can go to the console pane, now that it's there (or to the problems pane, if we rename that to compile output).

[MangelMaxime]

Indeed the reason being they are not toast like we have on our mobile phone. On mobile, you can have only one toast displayed at the time.

They are more like a notification system.

We can't have it in the problems panel. The problems panel is dedicated to the state of the editor nor the last compilation.

If we clear the console panel history when compilation has been a success as suggested in #43. Then we can probably add it to the console panel. And keep the toast for compilation failure.

[ncave]

@MangelMaxime Technically you can stack failure upon failure too, I do it all the time.

[MangelMaxime]

Then this is probably a new feature to add in Thoth.Elmish.Toast.

The feature I have in mind is to allow user attach a "group" to a Toast and say. I only want one Toast of this group displayed at a time.
If there is already a toast of the same group in the stack then it will be removed and the new one is added. This feature also needs to add transition/animation support so people can see the old toast being removed when the new one is added.