*group: parse @lids properly when processing group notifications

*This commit is breaking, it changes the format of participants in group-participants.update.

src/Socket/communities.ts

@@ -465,6 +465,7 @@ export const extractCommunityMetadata = (result: BinaryNode) => {
 		memberAddMode,
 		participants: getBinaryNodeChildren(community, 'participant').map(({ attrs }) => {
 			return {
+				// TODO: IMPLEMENT THE PN/LID FIELDS HERE!!
 				id: attrs.jid!,
 				admin: (attrs.type || null) as GroupParticipant['admin']
 			}