Logo SikaPics local + QR 180px + clavier virtuel email + QR conditionnel booth

- Logo SikaPics servi localement (/assets/logos/sikapics.png)
- QR code accueil agrandi a 180px
- Clavier AZERTY virtuel integre pour saisie email (tactile)
- Raccourcis @gmail, @hotmail, .com, .fr
- QR partage: affiche seulement si booth actif, lien vers galerie live
- Bouton QR visible si booth OU qr_code active

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/css/themes.css

@@ -57,10 +57,10 @@
 [data-theme="sikapics"] #nom-evenement::before {
   content: '';
   display: block;
-  width: 180px;
-  height: 60px;
-  margin: 0 auto 1rem;
-  background-image: url('https://sikapics.com/wp-content/uploads/2024/03/sikapics-logo-sans-fond.png');
+  width: 250px;
+  height: 80px;
+  margin: 0 auto 1.5rem;
+  background-image: url('/assets/logos/sikapics.png');
   background-size: contain;
   background-repeat: no-repeat;
   background-position: center;