Fix some a11y bugs

public/index.html

@@ -11,10 +11,7 @@
     <meta property="og:image" content="%PUBLIC_URL%/logo.svg" />
 
     <meta name="format-detection" content="telephone=no" />
-    <meta
-      name="viewport"
-      content="width=device-width, maximum-scale=1.0, initial-scale=1.0, user-scalable=0"
-    />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
 
     <title>%REACT_APP_RADAR_NAME%</title>
   </head>

src/components/SocialLink/SocialLink.tsx

@@ -34,6 +34,7 @@ const SocialLink: React.FC<Props> = ({ href, iconName }) => {
         target="_blank"
         rel="noopener noreferrer"
         className="social-icon-a"
+        aria-label={iconName}
       >
         <Icon className="social-icon" />
       </a>