fix crash on clicking on more reactors cell

Session/Conversations/Views & Modals/ReactionListSheet.swift

@@ -398,6 +398,7 @@ extension ReactionListSheet: UITableViewDelegate, UITableViewDataSource {
                 moreReactorCount: self.reactionSummaries[lastSelectedReactionIndex].number - self.selectedReactionUserList.count,
                 emoji: self.reactionSummaries[lastSelectedReactionIndex].emoji.rawValue
             )
+            footerCell.selectionStyle = .none
             
             return footerCell
         }
@@ -421,6 +422,8 @@ extension ReactionListSheet: UITableViewDelegate, UITableViewDataSource {
     func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
         tableView.deselectRow(at: indexPath, animated: true)
         
+        guard indexPath.row < self.selectedReactionUserList.count else { return }
+        
         let cellViewModel: MessageViewModel.ReactionInfo = self.selectedReactionUserList[indexPath.row]
         
         guard