lspconfig warn

Hi all, I'm getting this warning:
```
[mason-lspconfig.nvim] Server "ts_ls" is not a valid entry in ensure_installed.
```
Not sure what it means. How can I fix this?

```
> nvim --version
NVIM v0.10.1
Build type: Release
LuaJIT 2.1.1724232689
Run "nvim -V1 -v" for more info
```
```
✅ Your :BetterVim was successfully updated to v3.14.0
```
