Check twitter cards and OG tags are good for groups, categories and museums

[jamieu]

Need to check this works for groups, but worth checking other page types still work as well.

Also check page work for groups and other pages while looking at this too.

[evancp87]

As the page titles have been fixed and expanded on, with more improvements planned in future, this can be closed. I've opened a separate ticket for fixing the images on Twitter/X cards, which is not working at all