Preserve Newlines in Signature Help Documentation

Fixes #26346

**Bug**
Signature help currently handles newlines differently than completion item providers. This results in inconsistent looking documentation

**fix**
Use `pre-wrap` for the signature help documentation the same way we do for completion items

Fixes #26290

Exposes jsdoc tags such as `@priver` in the signature help and in completion items

Fixes #26290

Adds support for displaying documentation tags from jsdoc comments (such as `@private`) in hovers

Update PHP snippets

Fixes #22357

Adds file name to the workspace symbol results for JS and TS

Fixes #26238