This fixes https://github.com/zed-industries/zed/issues/18014 by fixing
the regression that was introduced in
https://github.com/zed-industries/zed/pull/17757.
In short: after digging into the `vtsls` code, it looks like it
essentially doesn't need any `initialization_options`, it's all
workspace configuration, since it tries to use the built-in settings
from VS Code.
I tested the completions, the inlay hints, the max memory - all of it
now works after moving to `workspace_configuration`.
Closes#18014.
Release Notes:
- Fixed `vtsls` being initialized the wrong way, which would mean the
wrong options were used to enable completions or inlay hints.
dbc325ea12