[site,seo][xs]: add apple touch icon, add alt props to images

site/components/Features.tsx

@@ -58,7 +58,7 @@ export default function Features() {
           >
             <div className="absolute -inset-px rounded-xl border-2 border-transparent opacity-0 [background:linear-gradient(var(--quick-links-hover-bg,theme(colors.sky.50)),var(--quick-links-hover-bg,theme(colors.sky.50)))_padding-box,linear-gradient(to_top,theme(colors.blue.300),theme(colors.blue.400),theme(colors.blue.500))_border-box] group-hover:opacity-100 dark:[--quick-links-hover-bg:theme(colors.slate.800)]" />
             <div className="relative overflow-hidden rounded-xl p-6">
-              <img src={feature.icon} alt="" className="h-24 w-auto" />
+              <img src={feature.icon} alt={feature.title} className="h-24 w-auto" />
               <h2 className="mt-4 font-display text-base text-primary dark:text-primary-dark">
                 <span className="absolute -inset-px rounded-xl" />
                 {feature.title}

site/content/config.js

@@ -1,7 +1,7 @@
 const config = {
   title: 'PortalJS - The JavaScript framework for data portals.',
   description:
-    'PortalJS is a framework for rapidly building rich data portal frontends using a modern frontend approach. PortalJS can be used to present a single dataset or build a full-scale data catalog/portal.',
+    'PortalJS is a framework for rapidly building rich data portal frontends using a modern frontend approach.',
   theme: {
     default: 'dark',
     toggleIcon: '/images/theme-button.svg',
@@ -36,6 +36,9 @@ const config = {
   ],
   footerLinks: [],
   nextSeo: {
+    additionalLinkTags: [
+      { rel: 'apple-touch-icon', href: '/icon.png', sizes: '120x120' },
+    ],
     openGraph: {
       type: 'website',
       title: