In The Last Jedi, the resistance fleet, seemingly about to be destroyed, fortuitously comes across the planet Crait, and Leia "reveals" a plan to stealth down to the planet to escape. This is news to the audience, who thus far knew that Admiral Holdo's plan was... to just keep running until they died?
...or was it?
Did Vice Admiral Holdo know about the presence of Crait and/or intend to go there all along?
Answers directly from the movie are preferable, but other canon material is also acceptable.
Incidentally, if she did know about Crait, why was this information not shared with the rest of the resistance command? Corollary question discussed here, though I would prefer an explanation from canon material instead of speculation.