A couple of minor a11y fixes

Picked up by Axe

src/Header.tsx

@@ -89,7 +89,11 @@ interface HeaderLogoProps {
 
 export function HeaderLogo({ className }: HeaderLogoProps) {
   return (
-    <Link className={classNames(styles.headerLogo, className)} to="/">
+    <Link
+      className={classNames(styles.headerLogo, className)}
+      to="/"
+      aria-label="Element Call Home"
+    >
       <Logo />
     </Link>
   );

src/button/CopyButton.tsx

@@ -48,6 +48,7 @@ export function CopyButton({
       className={className}
       onPress={setCopied}
       iconStyle={isCopied ? "stroke" : "fill"}
+      aria-label={t("Copy")}
     >
       {isCopied ? (
         <>