No wide/full align on front

Hello,

I’ve just installed your plugin, which works pretty well but I have a minor issue with it: in the Gutenberg editor, the block has an alignment option (none/wide/full), which seems to work there, but it doesn’t apply on the frontend; it seems that the block is missing the proper class (alignwide or alignfull).

I’m using a custom theme but I’ve checked with twentytwentyfive just in case and it’s the same. Also, I’m using WordPress 6.9, so maybe it’s an issue related to that new version.