Get all Groups joined or organized by the Current User

[sophmain]

Returns all the groups either created by the current user or those where the current user has a membership.

• [x] An authenticated user is required for a successful response
• [x] Successful response includes only groups created or joined by the current user
• [x] Group data returned includes the id, organizerId, name, about, type, private, city, state, createdAt, updatedAt, numMembers, and previewImage

[sophmain]

Duplicate groups are being added when the user is both the creator and a member of the group