fix: keep directory separators visible when filtering npm scripts

The "Debug npm script" quick pick groups scripts by directory using
separators in multi-root / monorepo workspaces. The quick pick sorts by
match position while filtering (the default), so typing a filter reorders
items across groups and drops the separators - the user can no longer tell
which package each script belongs to.

Disable match sorting only when scripts span multiple directories, so the
separators stay attached to their groups while filtering. Single-directory
pickers keep the default match sorting.

Author: patrickiel

src/ui/debugNpmScript.ts

@@ -49,6 +49,10 @@ export async function debugNpmScript(inFolder?: vscode.WorkspaceFolder | string)
   // directory name so the user knows where it's coming from.
   const multiDir = scripts.some(s => s.directory !== scripts[0].directory);
   const quickPick = vscode.window.createQuickPick<ScriptPickItem>();
+  // Keep the original order while filtering so directory separators stay attached to their
+  // groups; sorting by match would reorder across groups and drop them. (sortByLabel is
+  // proposed API microsoft/vscode#73904, safe at runtime — cast to avoid the dependency.)
+  (quickPick as { sortByLabel?: boolean }).sortByLabel = !multiDir;
 
   let lastDir: string | undefined;
   const items: ScriptPickItem[] = [];