Add merch link

Author: Gargron

components/Header.tsx

@@ -30,10 +30,10 @@ const Header = ({ transparent = true }: HeaderProps) => {
       value: "/apps",
       label: <FormattedMessage id="nav.apps.title" defaultMessage="Apps" />,
     },
-    // {
-    //   value: "https://freshstore.co/collections/mastodon",
-    //   label: <div className="flex gap-2 items-center"><FormattedMessage id="nav.merch.title" defaultMessage="Merch" /><span className="bg-goldenrod/[0.5] text-goldenrod c2 px-1.5 rounded border border-goldenrod"><FormattedMessage id='nav.new' defaultMessage='New' /></span></div>,
-    // },
+    {
+      value: "https://shop.joinmastodon.org/",
+      label: <div className="flex gap-2 items-center"><FormattedMessage id="nav.merch.title" defaultMessage="Merch" /><span className="bg-goldenrod/[0.5] text-goldenrod c2 px-1.5 rounded border border-goldenrod"><FormattedMessage id='nav.new' defaultMessage='New' /></span></div>,
+    },
     {
       value: "/sponsors",
       label: <FormattedMessage id="nav.sponsors.title" defaultMessage="Donate" />,