- import Kling & Jimeng icons from @lobehub/icons
- extend getChannelIcon() to return corresponding icons for new channel types 50 (Kling) and 51 (Jimeng)
- enhance EditChannel type selector:
• introduce useMemo‐based channelOptionList with leading icons
• utilize getChannelIcon for consistent icon rendering in dropdown options
- minor refactor: add useMemo and getChannelIcon imports in EditChannel.js
