Translate "My Dashboard" button

Translate the "My Dashboard" button text in the `LandingHeader` component using i18n.

Author: lovable-dev[bot]

src/components/landing/LandingHeader.tsx

@@ -4,6 +4,7 @@ import { ArrowRight } from "lucide-react";
 import { RefSpringLogo } from "@/components/RefSpringLogo";
 import { Link } from "react-router-dom";
 import { useAuth } from "@/hooks/useAuth";
+import { useTranslation } from "react-i18next";
 
 interface LandingHeaderProps {
   onRedirectToDashboard: () => void;
@@ -12,6 +13,7 @@ interface LandingHeaderProps {
 
 export const LandingHeader = ({ onRedirectToDashboard, currentPage = 'landing' }: LandingHeaderProps) => {
   const { user } = useAuth();
+  const { t } = useTranslation();
 
   const handleLoginClick = () => {
     if (user) {
@@ -52,7 +54,7 @@ export const LandingHeader = ({ onRedirectToDashboard, currentPage = 'landing' }
           </nav>
           <div className="flex items-center gap-3">
             <Button variant="outline" className="hidden md:flex hover:scale-105 transition-transform" onClick={handleLoginClick}>
-              {user ? "My Dashboard" : "Se connecter"}
+              {user ? t("auth.myDashboard") : t("auth.signIn")}
             </Button>
             <Button 
               className="bg-gradient-to-r from-blue-600 to-purple-600 hover:from-blue-700 hover:to-purple-700 text-white font-semibold px-6 py-2 shadow-lg hover:shadow-xl hover:scale-105 transition-all animate-pulse"

src/i18n/locales/en.json

@@ -1,4 +1,3 @@
-
 {
   "auth": {
     "title": "RefSpring",
@@ -20,7 +19,8 @@
     "accountCreated": "Account created",
     "accountCreatedDesc": "Your account has been created successfully!",
     "error": "Error",
-    "genericError": "An error occurred"
+    "genericError": "An error occurred",
+    "myDashboard": "My Dashboard"
   },
   "loading": "Loading...",
   "dashboard": {

src/i18n/locales/es.json

@@ -1,4 +1,3 @@
-
 {
   "auth": {
     "title": "RefSpring",
@@ -20,7 +19,8 @@
     "accountCreated": "Cuenta creada",
     "accountCreatedDesc": "¡Tu cuenta ha sido creada exitosamente!",
     "error": "Error",
-    "genericError": "Ocurrió un error"
+    "genericError": "Ocurrió un error",
+    "myDashboard": "Mi Panel de Control"
   },
   "loading": "Cargando...",
   "dashboard": {

src/i18n/locales/fr.json

@@ -1,4 +1,3 @@
-
 {
   "auth": {
     "title": "RefSpring",
@@ -20,7 +19,8 @@
     "accountCreated": "Compte créé",
     "accountCreatedDesc": "Votre compte a été créé avec succès !",
     "error": "Erreur",
-    "genericError": "Une erreur s'est produite"
+    "genericError": "Une erreur s'est produite",
+    "myDashboard": "Mon Tableau de Bord"
   },
   "loading": "Chargement...",
   "dashboard": {

src/i18n/locales/ru.json

@@ -1,4 +1,3 @@
-
 {
   "auth": {
     "title": "RefSpring",
@@ -20,7 +19,8 @@
     "accountCreated": "Аккаунт создан",
     "accountCreatedDesc": "Ваш аккаунт был успешно создан!",
     "error": "Ошибка",
-    "genericError": "Произошла ошибка"
+    "genericError": "Произошла ошибка",
+    "myDashboard": "Моя Панель"
   },
   "loading": "Загрузка...",
   "dashboard": {

src/i18n/locales/zh.json

@@ -1,4 +1,3 @@
-
 {
   "auth": {
     "title": "RefSpring",
@@ -20,7 +19,8 @@
     "accountCreated": "账户已创建",
     "accountCreatedDesc": "您的账户已成功创建！",
     "error": "错误",
-    "genericError": "发生了错误"
+    "genericError": "发生了错误",
+    "myDashboard": "我的仪表板"
   },
   "loading": "加载中...",
   "dashboard": {