Refactor account page to use icon in form title

- Remove redundant page heading from account page
- Add AccountCircle icon to AccountForm title
- Clean up unused account-page translations
- Simplify account page component by moving title to form

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/ui/AccountForm.tsx

@@ -6,6 +6,7 @@ import { updateUserProfile } from "../lib/actions/userProfileActions";
 import { useFormState, useFormStatus } from "react-dom";
 import { useLocale, useTranslations } from "next-intl";
 import Link from "next/link";
+import AccountCircleIcon from "@mui/icons-material/AccountCircle";
 
 export type AccountFormProps = {
     profile: UserProfile | null;
@@ -161,7 +162,7 @@ export const AccountForm: FC<AccountFormProps> = ({ profile }) => {
     return (
         <div className="card card-compact card-bordered min-w-[20em] max-w-[90em] bg-base-100 shadow-s my-1">
             <div className="card-body">
-                <h2 className="card-title">{t("title")}</h2>
+                <h2 className="card-title"><AccountCircleIcon className="w-6 h-6" /> {t("title")}</h2>
                 <form action={dispatch}>
                     <FormFields
                         profile={profile}