lsp: Use available workspace folders in initialize params (#25753)

Closes https://github.com/zed-industries/zed/issues/25743
Closes https://github.com/biomejs/biome-zed/issues/73

Release Notes:

- Fixed issues with launching Svelte/Biome language servers

crates/copilot/src/copilot.rs

@@ -475,6 +475,7 @@ impl Copilot {
                 binary,
                 root_path,
                 None,
+                Default::default(),
                 cx.clone(),
             )?;