Refactor command handling in ChatRepository for Android and iOS

- Reset commandLines and commandKind to default values when a command table event is received, ensuring a clean state for subsequent commands.
- This change improves the handling of command events and maintains consistency across platforms.

ios/YpChat/Data/ChatRepository.swift

@@ -483,6 +483,8 @@ final class ChatRepository: ObservableObject {
             }
 
         case .commandTable(let title, let columns, let rows):
+            current.commandLines = []
+            current.commandKind = nil
             current.commandTable = CommandTableState(title: title, columns: columns, rows: rows)
 
         case .error(let message):