feat: reference/implementation codelens

[jasonlyu123]

#2130 Porting VSCode's implementation/reference code lens. This is not enabled by default. To enable this, you'll need to enable the typescript.implementationsCodeLens.enabled config or the typescript.referencesCodeLens.enabled config for lang="ts" and javascript.referencesCodeLens.enabled for js components. Note that we reuse config for ts/js files so it'll also enable the feature in ts/js files.

For non-VSCode users

Due to protocol limitations, this feature only partly works on other LSP clients. A client middleware is required to map reference info to references UI. So LSP client author might need to add support for it. For neovim-lsp users, you'll need a similar solution for the typescript language server.

Screenshots

(Yes. this will work for Svelte 5 props if it's a separate interface)