Commands for daily games

[Sootopolis]

It would be nice to have the following commands in daily/correspondence games:

• confirm move
• toggle analysis board
• open opening explorer in a new window

[leandwo]

@everyonesdesign What do you think about adding a command for toggling the analysis board or opening explorer?

I'd like to make a PR for those as well, if you agree that it should be added.

[everyonesdesign]

Sounds good to me, thanks @leandwo !