refactor(curriculum): remove errors from Build a Cat Blog page workshop (#58744)

curriculum/challenges/english/25-front-end-development/workshop-blog-page/669fd6fd12918e3de87854d4.md

@@ -72,7 +72,7 @@ Your `ul` element should contain three `li` elements.
 ```js
 const ulElement = document.querySelector("ul");
 
-const liElements = ulElement.querySelectorAll("li");
+const liElements = ulElement?.querySelectorAll("li");
 assert.strictEqual(liElements?.length, 3);
 ```
 

curriculum/challenges/english/25-front-end-development/workshop-blog-page/66a33e9bd3aa213cd23d9c57.md

@@ -21,7 +21,7 @@ You should have two `p` elements inside your `address` element.
 
 ```js
 const addressElement = document.querySelector('footer #contact address');
-const pElements = addressElement.querySelectorAll('p');
+const pElements = addressElement?.querySelectorAll('p');
 
 assert.lengthOf(pElements, 2);
 ```

curriculum/challenges/english/25-front-end-development/workshop-blog-page/66a7e72adf226c02626715a3.md

@@ -18,7 +18,7 @@ Your first paragraph should have the text of `Hi there! I'm Jane Doe, a passiona
 ```js
 const pElement = document.querySelector('body p:first-of-type');
 const text = "Hi there! I'm Jane Doe, a passionate writer who finds endless inspiration in the antics of my beloved cat, Mr. Whiskers."
-assert.strictEqual(pElement.innerText, text);
+assert.strictEqual(pElement?.innerText, text);
 ```
 
 Your first paragraph should be nested inside the `section` element.