Update sqlmesh/lsp/main.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: benfdking

sqlmesh/lsp/main.py

@@ -104,6 +104,10 @@ def __init__(
         :param context_class: A class that inherits from `Context`.
         :param server_name: Name for the language server.
         :param version: Version string.
+        
+        Note:
+        The `max_workers=1` parameter is set for the `LanguageServer` to ensure compatibility with VSCode.
+        VSCode's LSP client has threading and concurrency requirements that necessitate single-worker mode.
         """
         self.server = LanguageServer(server_name, version, max_workers=1)
         self.context_class = context_class