feat(profile): display a personalized greeting for logged-in users on the profile page

style(workout-session-list): adjust margin for workout session list container for better spacing

app/[locale]/profile/page.tsx

@@ -29,6 +29,13 @@ export default function ProfilePage() {
   return (
     <div className="px-2 sm:px-6">
       {!session && <LocalAlert className="my-4" />}
+      {session && (
+        <div className="mt-4">
+          <div>
+            <h2 className="text-2xl font-bold">Hello, {session.user?.name} 👋</h2>
+          </div>
+        </div>
+      )}
       <div className="mt-4">
         <WorkoutSessionHeatmap until={until} values={values} />
       </div>

src/features/workout-session/ui/workout-session-list.tsx

@@ -98,7 +98,7 @@ export function WorkoutSessionList() {
   };
 
   return (
-    <div className="space-y-4 px-2 sm:px-6">
+    <div className="space-y-4 mt-10">
       <h2 className="text-xl font-bold mt-5 mb-2 text-slate-900 dark:text-slate-200">
         {t("workout_builder.session.history", { count: sessions.length })}
       </h2>