docs(demo): update image source paths in demos.astro for testing

Author: felixicaza

docs/src/pages/demos.astro

@@ -23,7 +23,7 @@ import thirdImage from '@images/pexels-fabianwiktor-3470478.jpg'
         <div>
           <h3>LQIP Base64 (Default)</h3>
           <Picture
-            src={firstImage}
+            src="../images/pexels-fabianwiktor-3470482.jpg"
             alt="A beautiful landscape with a lake and mountains 1"
             width={234}
             height={234}
@@ -34,7 +34,7 @@ import thirdImage from '@images/pexels-fabianwiktor-3470478.jpg'
         <div>
           <h3>LQIP Color</h3>
           <Image
-            src={secondImage}
+            src="/src/images/pexels-fabianwiktor-3470872.jpg"
             alt="A beautiful landscape with a lake and mountains 2"
             width={234}
             height={234}
@@ -44,7 +44,7 @@ import thirdImage from '@images/pexels-fabianwiktor-3470478.jpg'
         <div>
           <h3>LQIP CSS</h3>
           <Picture
-            src={thirdImage}
+            src="@images/pexels-fabianwiktor-3470478.jpg"
             alt="A beautiful landscape with a lake and mountains 3"
             width={234}
             height={234}