Improve user-facing error messages for IDE mode (#5522)

packages/core/src/ide/detect-ide.ts

@@ -11,9 +11,12 @@ export enum DetectedIde {
 export function getIdeDisplayName(ide: DetectedIde): string {
   switch (ide) {
     case DetectedIde.VSCode:
-      return 'VSCode';
-    default:
-      throw new Error(`Unsupported IDE: ${ide}`);
+      return 'VS Code';
+    default: {
+      // This ensures that if a new IDE is added to the enum, we get a compile-time error.
+      const exhaustiveCheck: never = ide;
+      return exhaustiveCheck;
+    }
   }
 }