bump version to 3.3

rename opacity to transparency on layers editor screen

fix auto-generation bug and preset fields race-condition in Gutenberg…

… sidebar

fix sidebar problem in FSE editor

fix missing translation handler in settings editor

add optional context parameter to sharing_image_prepare_template filt…

…er and gif poster format

update github action

fix poster background opacity on template editor screen

added second parameter to public template functions

updated HTML meta tags to be able to display Twitter cards