add auto-highlighting of selected/updated code

src/application/State/Code/Generation/IUserScriptGenerator.ts

@@ -1,5 +1,7 @@
 import { SelectedScript } from '@/application/State/Selection/SelectedScript';
-
+import { IUserScript } from './IUserScript';
 export interface IUserScriptGenerator {
-    buildCode(selectedScripts: ReadonlyArray<SelectedScript>, version: string): string;
+    buildCode(
+        selectedScripts: ReadonlyArray<SelectedScript>,
+        version: string): IUserScript;
 }