VSCE: Code intel stacks for typescript files

Created by: jjinnii

Raised from internal feedback, VS Code's code intel is enabled for typescript files. This is currently resulting in both Sourcegraph and VS Code's code intel being stacked in code intel for specifically typescript files.

Expected behavior:

For remote files opened through Sourcegraph search, Sourcegraph code intel should override VS Code's code intel.

Actual behavior:

For typescript files, VS Code's native code intel is stacking on top of our Sourcegraph code intel.

Additional context

Related issue #134271.