Add the ability to disable the "Go to Definition" function for css classes

[johnsoncodehk]

Discussed in #1119

^{Originally posted by MaxIV20 March 29, 2022}
For VS Code, there is an extension "CSS Navigation", which is better to find class definitions (it can find classes in external css/scss files, or abbreviated scss classes starting with &__class-name, volar does not see them).

Is it possible to add an option to disable the "Go to Definition" function in volar for css classes?

The underlining of classes for which a definition has been found also gets in the way a bit. It would be great to also add an option to disable class underscores.

[lsdsjy]

Can Volar support parent selectors(&) when finding class definitions? It seems that "CSS Navigation" does not support Vue SFC well: pucelle/vscode-css-navigation#30 (comment)