@see attribute and lua:// links not exposed in exported json

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### How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

### Which OS are you using?

Linux

### What is the issue affecting?

Other

### Expected Behaviour

`@see` attribute data and `lua://` links are written to the exported json documentation. Preferably being easily readable and containing the raw data to enable linking between different parts of a generated html documentation site.

### Actual Behaviour

The `@see` attribute and `lua://` links are transformed to raw markdown links that link directly to the source code using an absolute path.

### Reproduction steps

1. Make a new lua file.
2. Add two functions:
```lua
function foo() end
--- @see foo
--- This function links to [`foo`](lua://foo)
function bar() end
```
3. Export the documentation to json
4. Observe the attribute and markdown link having been replaced with:
```md
[`foo`]({path}#{location})
See: [foo]({path}#{location})
```

### Additional Notes

I have been working on definition files for CC:T, and having been using the `@see` attribute and `lua://` links as equivalents for the current links on https://tweaked.cc .
However, after trying to actually export the declarations, I've noticed that all links point directly towards absolute paths on disk. This is fine (or even needed) for editors to work, but it's undesirable for markdown output, and even worse for json.
If this method of exporting is intended to allow for things like generating static html pages, this information should be exposed better to allow for this.

### Log File

_No response_

Riproduci il problema definendo foo e bar con gli esempi mostrati di @see e lua://, quindi esporta la documentazione in JSON. Ispeziona il percorso di esportazione che converte questi link in percorsi sorgente assoluti. Il lavoro è completato quando il JSON conserva dati @see leggibili e le informazioni grezze dei link lua:// adatte al collegamento nell’HTML generato.

Scritto dal modello di indicizzazione a partire dal testo della issue.