[EddieHubCommunity#308] Some Images missing "alt" property

Fixes EddieHubCommunity#308

This pull request addresses missing alt property in some images reported in EddieHubCommunity#308 .
The changes iinclude setting the alt value to the name of the person testifying.

src/components/Testimonials.jsx

@@ -129,7 +129,7 @@ export function Testimonials() {
                               testimonial.author.username +
                               '.png'
                             }
-                            alt=""
+                            alt={`${testimonial.author.name} image}
                             width={56}
                             height={56}
                           />