@folders shows "No results" even though I have a directory in my workspace

[TyDunn]

Before submitting your bug report

• [X] I believe this is a bug. I'll try to join the Continue Discord for questions
• [X] I'm not able to find an open issue that reports the same bug
• [x] I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

- OS: MacOS
- Continue: Latest (Pre-release)
- IDE: VS Code

Description

I can't use @folders to add context

We should also rename @folders to @folder, since 1) you are only adding one folder at a time and 2) the config property is "folder" already

To reproduce

1. Open VS Code with a project that contains directories
2. Type @folders
3. See that it says "No results"

Log output

No response

[justinmilner1]

Starting work on this