Testing #247388

I decided to test it via keybindings:

	{ "key": "ctrl+alt+left", "command": "copilot-chat.open", "args": { "preserveFocus": true } },
	{ "key": "ctrl+alt+left", "command": "copilot-chat.open" },

I noticed I get suggestions for the command name copilot-chat.open which is cool, I was thinking it would have been even nicer to get suggestions for the preserveFocus argument, like for example I get for this command:

	{ "key": "shift+tab", "command": "type", "args": { "text": "\t" },		"when": "editorTextFocus" },