feat: add alias set and alias delete cli commands

[chamini2]

No description provided.

[linear]

FEA-1741 Add alias set and delete command

[isidentical]

How does the flow work for these? E.g. if I register an app with a single alias, and then copy the revision for it and add another alias to it, I assume it won't keep it up to date with the new releases which might cause a really weird behavior. Should we also make it possible to represent aliases=[] in the @fal.function so every time a user registers we release it in all aliases (or make the aliases being able to point other aliases, not just revisions).