fix(dashboard): adjust header layout and update homepage link styling

app/(dashboard)/dashboard/layout.tsx

@@ -13,10 +13,15 @@ export default async function DashboardLayout({
 
   return (
     <div className="dashboard-shell flex min-h-screen flex-col">
-      <header className="mb-7 flex flex-wrap items-center justify-between gap-4 border-b border-border/80 pb-5">
+      <header className="mb-7 flex flex-wrap items-start justify-between gap-4 border-b border-border/80 pb-5">
         <div className="space-y-1">
-          <Link href="/" className="terminal-heading">
-            PayMe
+          <Link
+            href="/"
+            className="inline-flex items-center rounded-md border border-border/90 bg-panel/70 px-3 py-2 text-base font-bold uppercase tracking-[0.24em] text-text transition-colors hover:border-accent/60 hover:text-accent focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-accent/70 focus-visible:ring-offset-2 focus-visible:ring-offset-bg"
+            aria-label="Go to homepage"
+            title="Go to homepage"
+          >
+            PAYME
           </Link>
           <p className="text-sm text-muted">{user.email}</p>
         </div>