Allows invites to be sent to offline remotes (#28176)

* Allows invites to be sent to offline remotes

Invites sent to remotes marked as offline will be stored as pending,
and when the remote comes back online, it will process the invites as
part of the synchronization process.

* Update condition name for excluding confirmed invites

server/channels/store/sqlstore/shared_channel_store.go

@@ -495,7 +495,9 @@ func (s SqlSharedChannelStore) GetRemotes(offset, limit int, opts model.SharedCh
 		query = query.Where(sq.Eq{"scr.RemoteId": opts.RemoteId})
 	}
 
-	if !opts.InclUnconfirmed {
+	if opts.ExcludeConfirmed {
+		query = query.Where(sq.Eq{"scr.IsInviteConfirmed": false})
+	} else if !opts.IncludeUnconfirmed {
 		query = query.Where(sq.Eq{"scr.IsInviteConfirmed": true})
 	}