update frontend

src/components/Layout/TopBar.jsx

@@ -219,6 +219,13 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
     return null;
   }, [lastError, lastInfo, needsEmailVerification]);
 
+  // Bouton PWA "Installer" en haut (manuel, pas auto)
+  const handleInstall = () => {
+    if ('serviceWorker' in navigator && navigator.serviceWorker.controller) {
+      navigator.serviceWorker.controller.postMessage({ type: 'install' });
+    }
+  };
+
   return (
     <>
       {/* Toast area (under topbar) */}
@@ -246,7 +253,7 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
             </div>
           </div>
 
-          {/* Theme dots */}
+          {/* Theme dots + BOUTON INSTALL PWA */}
           <div className="brand-under">
             <div className="theme-switch">
               {["dark", "blue", "light"].map((t) => (
@@ -261,6 +268,27 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
                 </button>
               ))}
             </div>
+
+            {/* BOUTON INSTALL PWA ici en haut */}
+            <button
+              onClick={handleInstall}
+              style={{
+                marginLeft: '8px',
+                padding: '5px 10px',
+                fontSize: '12px',
+                background: '#0ea5e9',
+                color: 'white',
+                border: 'none',
+                borderRadius: '999px',
+                cursor: 'pointer',
+                display: 'flex',
+                alignItems: 'center',
+                gap: '6px',
+                boxShadow: '0 2px 8px rgba(0,0,0,0.3)',
+              }}
+            >
+              <i className="fa-solid fa-download"></i> Installer
+            </button>
           </div>
         </div>