fix(curriculum): update test case in cat photo app (freeCodeCamp#58401)

Co-authored-by: Ilenia <26656284+ilenia-magoni@users.noreply.github.com>

Author: timmy471

curriculum/challenges/english/14-responsive-web-design-22/learn-html-by-building-a-cat-photo-app/5dfb6250eacea3f48c6300b2.md

@@ -20,37 +20,34 @@ And its `alt` attribute value to:
 There should be an `img` element right after the closing `</ul>` tag.
 
 ```js
-assert.equal(document.querySelectorAll('section')?.[1]?.lastElementChild?.nodeName, 'IMG');
+assert.equal(document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.nodeName, 'IMG');
 ```
 
 The new image does not have an `alt` attribute. Check that there is a space after the opening tag's name and/or there are spaces before all attribute names.
 
 ```js
-assert.isTrue(document.querySelectorAll('section')?.[1]?.lastElementChild?.hasAttribute('alt'));
+assert.isTrue(document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.hasAttribute('alt'));
 ```
 
 The new image should have an `alt` value of `A slice of lasagna on a plate.` Make sure the `alt` attribute's value is surrounded with quotation marks.
 
 ```js
-assert(
-  document.querySelectorAll('section')?.[1]
-    ?.lastElementChild?.getAttribute('alt')
-    .replace(/\s+/g, ' ')
-    .match(/^A slice of lasagna on a plate\.?$/i)
+assert.match(
+  document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.getAttribute('alt')?.replace(/\s+/g, ' '), /^A slice of lasagna on a plate\.?$/i 
 );
 ```
 
 The new image does not have a `src` attribute. Check that there is a space after the opening tag's name and/or there are spaces before all attribute names.
 
 ```js
-assert.isTrue(document.querySelectorAll('section')?.[1]?.lastElementChild?.hasAttribute('src'));
+assert.isTrue(document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.hasAttribute('src'));
 ```
 
 The new image should have a `src` value of `https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg`. Make sure the `src` attribute's value is surrounded with quotation marks.
 
 ```js
 assert.strictEqual(
-  document.querySelectorAll('section')?.[1]?.lastElementChild?.getAttribute('src'),
+  document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.getAttribute('src'),
     'https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg'
 );
 ```

curriculum/challenges/english/25-front-end-development/workshop-cat-photo-app/5dfb6250eacea3f48c6300b2.md

@@ -20,36 +20,34 @@ And its `alt` attribute value to:
 There should be an `img` element right after the closing `</ul>` tag.
 
 ```js
-assert.equal(document.querySelectorAll('section')[1].lastElementChild.nodeName, 'IMG');
+assert.equal(document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling.nodeName, 'IMG');
 ```
 
 The new image does not have an `alt` attribute. Check that there is a space after the opening tag's name and/or there are spaces before all attribute names.
 
 ```js
-assert.isTrue(document.querySelectorAll('section')[1].lastElementChild.hasAttribute('alt'));
+assert.isTrue(document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling.hasAttribute('alt'));
 ```
 
 The new image should have an `alt` value of `A slice of lasagna on a plate.` Make sure the `alt` attribute's value is surrounded with quotation marks.
 
 ```js
 assert.match(
-  document.querySelectorAll('section')[1]
-    .lastElementChild.getAttribute('alt')
-    .replace(/\s+/g, ' '), /^A slice of lasagna on a plate\.?$/i
+  document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.getAttribute('alt')?.replace(/\s+/g, ' '), /^A slice of lasagna on a plate\.?$/i 
 );
 ```
 
 The new image does not have a `src` attribute. Check that there is a space after the opening tag's name and/or there are spaces before all attribute names.
 
 ```js
-assert.isTrue(document.querySelectorAll('section')[1].lastElementChild.hasAttribute('src'));
+assert.isTrue(document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling.hasAttribute('src'));
 ```
 
 The new image should have a `src` value of `https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg`. Make sure the `src` attribute's value is surrounded with quotation marks.
 
 ```js
 assert.equal(
-  document.querySelectorAll('section')[1].lastElementChild.getAttribute('src'),
+  document.querySelectorAll('section')[1].querySelector('ul').nextElementSibling?.getAttribute('src'),
     'https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg'
 );
 ```