fix(dialogs/spawnDialog): improve typing

[ShGKme]

☑️ Resolves

// Props are checked to be valid MyDialog props
// result type is inferred
const result = await spawnDialog<typeof MyDialog>(MyDialog, { prop: 'value' })

// But doesn't work this way :(
const result = await spawnDialog(MyDialog, { prop: 'value' })

🖼️ Screenshots

🏚️ Before	🏡 After
B	A

🚧 Tasks

• ...

🏁 Checklist

• ⛑️ Tests are included or are not applicable
• 📘 Component documentation has been extended, updated or is not applicable
• 2️⃣ Backport to stable8 for maintained Vue 2 version or not applicable

[ShGKme]

I don't understand why it works, we C is specified as typeof MyDialog, but it cannot infer it from MyDialog passed to the dialog param...

[ShGKme]

For manual testing:

const ComponentNoEvent = defineComponent({
	name: 'Component1',
	props: {
		foo: {
			type: Number,
			required: true,
		},
	},
})

const Component1 = defineComponent({
	name: 'Component1',
	props: {
		foo: Number,
	},
	emits: {
		close: () => true,
	},
})

const Component2 = defineComponent({
	name: 'Component2',
	props: {
		foo: Number,
	},
	emits: {
		close: (payload: Date) => true,
		open: () => true,
	},
})

const Component3 = defineComponent({
	name: 'Component3',
	props: {
		foo: Number,
	},
	emits: {
		close: (a: number, b: number) => true,
	},
})

const result0 = await spawnDialog(ComponentNoEvent, { foo: 1 }) // Should be never

const result1 = await spawnDialog(Component1, { foo: 1 }) // Should be void

const result2 = await spawnDialog(Component2, { foo: 1 })
console.log(result2[0].toISOString())

const result3 = await spawnDialog(Component3, { foo: 1 })
console.log(-result3[0] - result3[1])

[ShGKme]

• Closing in favor of fix(dialogs/spawnDialog): enhance spawnDialog types #6781