fix(a11y): resolve accessibility issues

A11y Improvements
- add screen-reader only texts
- remove autoFocus on search box
- replace disabled link with span text in LinkButton

src/components/Socials.astro

@@ -19,6 +19,7 @@ const { centered = false } = Astro.props;
         title={social.linkTitle}
       >
         <Fragment set:html={socialIcons[social.name]} />
+        <span class="sr-only">{social.linkTitle}</span>
       </LinkButton>
     ))
   }