🌐(frontend) internationalize missing error message

Add translation support for previously untranslated error message to
complete localization coverage.

src/frontend/src/features/settings/components/tabs/AccountTab.tsx

@@ -41,7 +41,7 @@ export const AccountTab = ({ id, onOpenChange }: AccountTabProps) => {
         value={name}
         onChange={setName}
         validate={(value) => {
-          return !value ? <p>{'Votre Nom ne peut pas être vide'}</p> : null
+          return !value ? <p>{t('account.nameError')}</p> : null
         }}
       />
       <H lvl={2}>{t('account.authentication')}</H>

src/frontend/src/locales/de/settings.json

@@ -4,7 +4,8 @@
     "heading": "Konto",
     "youAreNotLoggedIn": "Sie sind nicht angemeldet.",
     "nameLabel": "Ihr Name",
-    "authentication": "Authentifizierung"
+    "authentication": "Authentifizierung",
+    "nameError": "Ihr Name darf nicht leer sein"
   },
   "audio": {
     "microphone": {

src/frontend/src/locales/en/settings.json

@@ -4,7 +4,8 @@
     "heading": "Account",
     "youAreNotLoggedIn": "You are not logged in.",
     "nameLabel": "Your Name",
-    "authentication": "Authentication"
+    "authentication": "Authentication",
+    "nameError": "Your name cannot be empty"
   },
   "audio": {
     "microphone": {

src/frontend/src/locales/fr/settings.json

@@ -4,7 +4,8 @@
     "heading": "Compte",
     "youAreNotLoggedIn": "Vous n'êtes pas connecté.",
     "nameLabel": "Votre Nom",
-    "authentication": "Authentification"
+    "authentication": "Authentification",
+    "nameError": "Votre Nom ne peut pas être vide"
   },
   "audio": {
     "microphone": {

src/frontend/src/locales/nl/settings.json

@@ -4,7 +4,8 @@
     "heading": "Account",
     "youAreNotLoggedIn": "U bent niet ingelogd.",
     "nameLabel": "Uw naam",
-    "authentication": "Authenticatie"
+    "authentication": "Authenticatie",
+    "nameError": "Uw naam mag niet leeg zijn"
   },
   "audio": {
     "microphone": {