[Feature Request]: temporarily disable hotkeys or context based hotkeys

### Is there an existing issue for this?

- [X] I have searched the existing issues and checked the recent builds/commits

### What would your feature do ?

A developer api to temporarily disable hotkeys.
When a user opens the Mask Editor and presses Ctrl+Z, the undo operation should affect the Mask Editor rather than triggering ComfyUI's global undo functionality.

A better alternative would be a developer API to create hotkeys that only affect a certain context. Context could be enabled and disabled.

### Proposed workflow

// Usage example 1

app.extensionManager.disableKeybindings('commandId1');
app.extensionManager.enableKeybindings(['commandId1', 'commandId2']);

//Usage example 2

//create context and keybinding via app.registerExtension

app.extensionManager.enableHotkeyContext('contextId')
app.extensionManager.disableHotkeyContext('contextId')

### Additional information

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1595-Feature-Request-temporarily-disable-hotkeys-or-context-based-hotkeys-15f6d73d36508139a6b4d3bc724a66f8) by [Unito](https://www.unito.io)