fix: cors issue with functions serve

fix: windows path again

fix: windows path

Merge pull request supabase#228 from supabase/fix/rollback-file

fix: revert revert

fix: windows path

fix: remove punctuation from deploy statement

fix: adds supabase folder if it doesn't exist

fix: deploy

Merge pull request supabase#221 from supabase/fix/prompt-link

fix(functions/deploy): prompt link

Merge pull request supabase#219 from supabase/km/fix-function-delete

fix: support passing of --project-ref in functions delete