Enhancement: Internal linking for Hugo sites in editing mode

[sandlex]

Is your feature request related to a problem? Please describe.

I'm using FrontMatter to manage my blog built on static site generator Hugo. As per default Hugo configuration content markdown files located in <BLOG_ROOT>/content/posts. This directory is registered in Settings > Content folders and FM plugin sees them as posts.

For internal linking of posts I use following notation: [link to another post](/another-post). Once site is generated URI of the link is prefixed with baseURL configured in Hugo config.toml and full URL becomes <baseURL>/another-post (e.g. https://mynextbestrace.com/another-post). So far so good.

In editing mode, however, when I want to navigate to the linked post I'm getting a popup dialog saying that the linked file doesn't exist. This is because VSCode is looking for the file <BLOG_ROOT>/another-post.md, and not <BLOG_ROOT>/content/posts/another-post.md.

Describe the solution you'd like

In order to support navigation through internal links in editing mode we need to have a resolver which would "translate" internal link URI to the proper file name.

We could have a setting: internalLinkedFilePrefix = 'content/posts'.
Whenever we try to navigate the local link [link to another post](/another-post) plugin will "resolve" it to a proper file name by adding a value of internalLinkedFilePrefix as a prefix and will open the file content/posts/another-post.md.