[CLNP-7730] fix: Close delete modal and update channel list after open channel deletion

[OnestarLee]

Summary

• Fixed a bug where the delete channel modal did not close after successful deletion
• Added channel event handler to OpenChannelList to listen for channel deletion events and update the list automatically
• Fixed the OpenChannelApp to properly handle channel deletion by closing settings and clearing the selected channel

Ticket

https://sendbird.atlassian.net/browse/CLNP-7730

Changelogs

• Fixed a bug where the open channel delete modal did not close after successful deletion
• Fixed a bug where the open channel list was not updated after a channel was deleted

Checklist

• All tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• Public components / utils / props are appropriately exported
• I have added necessary documentation (if appropriate)

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[Copilot]

Pull request overview

This pull request fixes a bug where the delete channel modal did not close after successful deletion and the channel list was not updated to reflect the deletion. The fix adds event handling for channel deletion and ensures proper UI state management.

Changes:

• Added channel deletion event handler to OpenChannelList to automatically update the list when a channel is deleted
• Fixed DeleteOpenChannel modal to close after successful deletion and migrated from deprecated onCancel to onClose prop
• Added onDeleteChannel callback to OpenChannelApp to close settings panel and clear selected channel on deletion

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/modules/OpenChannelSettings/components/OperatorUI/DeleteOpenChannel.tsx	Closes modal after successful deletion and migrates to non-deprecated onClose prop
src/modules/OpenChannelList/context/dux/reducer.ts	Adds DELETE_OPEN_CHANNEL action handler to filter deleted channel from list and clear currentChannel if needed
src/modules/OpenChannelList/context/dux/actionTypes.ts	Adds DELETE_OPEN_CHANNEL action type enum
src/modules/OpenChannelList/context/OpenChannelListProvider.tsx	Adds OpenChannelHandler to listen for channel deletion events and dispatch DELETE_OPEN_CHANNEL action
src/modules/OpenChannelApp/index.tsx	Adds onDeleteChannel callback to close settings and clear channel URL when channel is deleted
.nvmrc	Adds Node.js version specification (18) matching package.json requirements

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