minor style fix

pages/shop/try/validation.vue

@@ -18,7 +18,12 @@
         </p>
       </v-card-text>
       <v-card-actions class="justify-center">
-        <v-btn color="primary" to="/opentalent-artist">
+        <v-btn
+          variant="elevated"
+          prepend-icon="fas fa-arrow-left"
+          color="secondary"
+          to="/opentalent-artist"
+        >
           Retour à la page Opentalent Artist
         </v-btn>
       </v-card-actions>