All community groups require a LW-specific category

[jasoncrawford]

All community groups have to be given a category, it seems, and the categories are LW-specific. Can we just omit/hide those categories for now?

[jasoncrawford]

Note that the group type also shows up on the event detail page: https://www.progressforum.org/groups/8HcHWMoNwr9qkjJbc