Fix TypeScript matcher typing issue

docs/README.md

@@ -18,6 +18,7 @@ This directory contains project documentation organized by topic.
 ### For Testing
 
 Start with **[TESTING_GUIDE.md](./TESTING_GUIDE.md)** for:
+
 - Testing philosophy and approach
 - Component testing with `componentTestSuite`
 - E2E testing with Playwright
@@ -27,6 +28,7 @@ Start with **[TESTING_GUIDE.md](./TESTING_GUIDE.md)** for:
 ### For Custom Hooks
 
 See **[CUSTOM_HOOKS.md](./CUSTOM_HOOKS.md)** for:
+
 - Available custom hooks
 - Usage examples
 - API documentation
@@ -34,6 +36,7 @@ See **[CUSTOM_HOOKS.md](./CUSTOM_HOOKS.md)** for:
 ### For Content Creation
 
 See **[content-creation.md](./guides/content-creation.md)** for:
+
 - How to create blog articles
 - Content guidelines
 - Contribution workflow

docs/TESTING_GUIDE.md

@@ -74,7 +74,9 @@ const config: ComponentTestSuiteConfig<Props> = {
     error: {
       props: { error: true } as Partial<Props>,
       assert: (el) => {
-        expect(el).toHaveClass("border-[var(--color-border-default-utility-negative)]");
+        expect(el).toHaveClass(
+          "border-[var(--color-border-default-utility-negative)]",
+        );
       },
     },
   },
@@ -214,4 +216,3 @@ Accessibility is tested at two levels:
    - Tests complete user journeys for accessibility barriers
 
 This two-tier approach ensures both individual components and full page experiences meet accessibility standards.
-