Add Quick Fix to template

[yulin96]

What problem does this feature solve?

Hi there! First of all, thank you to you and all the contributors for this awesome project — it has been a great help in my workflow! 🚀

it’d be super helpful if the template could support Quick Fix functionality!

What does the proposed solution look like?

[KazariEX]

The reason for this problem is that __VLS_ctx. is generated before the virtual code of all variables in the template, and the code at this location is used for verification, which results in there being no code that can trigger the addition of missing imports.

If we generate additional unprefixed expressions and enable verification here, it may cause unexpected errors when we access props or other properties that exist in the component context but not in setup.

I don't have a solution for now, I hope this information can help potential contributors.