refactor: clean up unused lesson imports and improve code consistency

src/app.js

@@ -92,7 +92,7 @@ async function initializeModules() {
 		const progressData = lessonEngine.loadUserProgress();
 		const lastModuleId = progressData?.lastModuleId;
 
-		if (lastModuleId && modules.find(m => m.id === lastModuleId)) {
+		if (lastModuleId && modules.find((m) => m.id === lastModuleId)) {
 			selectModule(lastModuleId);
 		} else if (modules.length > 0) {
 			selectModule(modules[0].id);

src/config/lessons.js

@@ -5,34 +5,10 @@
 // Import lesson configs
 import basicSelectorsConfig from "../../lessons/00-basic-selectors.json";
 import advancedSelectorsConfig from "../../lessons/01-advanced-selectors.json";
-import carouselConfig from "../../lessons/02-css-only-carousel.json";
-// import basicsConfig from "../../lessons/00-basics.json";
-// import boxModelConfig from "../../lessons/01-box-model.json";
-// import selectorsConfig from "../../lessons/02-selectors.json";
-// import colorsConfig from "../../lessons/03-colors.json";
-// import typographyConfig from "../../lessons/04-typography.json";
-import unitVariablesConfig from "../../lessons/05-units-variables.json";
-// import transitionsAnimationsConfig from "../../lessons/06-transitions-animations.json";
-// import layoutConfig from "../../lessons/07-layouts.json";
-// import responsiveConfig from "../../lessons/08-responsive.json";
 import tailwindConfig from "../../lessons/10-tailwind-basics.json";
 
 // Module store
-const moduleStore = [
+const moduleStore = [basicSelectorsConfig, advancedSelectorsConfig, tailwindConfig];
-	// basicsConfig,
-	basicSelectorsConfig,
-	advancedSelectorsConfig,
-	tailwindConfig
-	// carouselConfig
-	// boxModelConfig,
-	// selectorsConfig,
-	// colorsConfig
-	// typographyConfig,
-	// unitVariablesConfig
-	// transitionsAnimationsConfig,
-	// layoutConfig,
-	// responsiveConfig
-];
 
 /**
  * Load all available modules

src/impl/LessonEngine.js

@@ -3,7 +3,6 @@
  * Single source of truth for lesson state and progress
  */
 import { validateUserCode } from "../helpers/validator.js";
-import { showFeedback } from "../helpers/renderer.js";
 
 export class LessonEngine {
 	constructor() {
@@ -55,7 +54,7 @@ export class LessonEngine {
 	 * @returns {boolean} Whether the operation was successful
 	 */
 	setModuleById(moduleId) {
-		const module = this.modules.find(m => m.id === moduleId);
+		const module = this.modules.find((m) => m.id === moduleId);
 		if (!module) return false;
 
 		this.setModule(module);