Rename the application to RegisFlow and update the branding elements

Update application title to "RegisFlow" across client/index.html, Dashboard.tsx, Login.tsx and replit.md.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 91318273-c764-4fd4-be04-bdc12c38af32
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/75b569d4-1b21-43d8-b5b1-0816d59edebd.jpg

client/index.html

@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1" />
-    <title>Registre des Ventes de Pétards</title>
+    <title>RegisFlow</title>
     <meta name="description" content="Application de gestion des ventes de feux d'artifice conforme à la réglementation française" />
   </head>
   <body>

client/src/pages/Dashboard.tsx

@@ -51,7 +51,7 @@ function DashboardContent() {
                 <div className="absolute -inset-1 bg-gradient-to-br from-primary to-purple-600 rounded-xl blur opacity-20 -z-10"></div>
               </div>
               <div>
-                <h1 className="text-xl font-bold gradient-text">Registre des Ventes</h1>
+                <h1 className="text-xl font-bold gradient-text">RegisFlow</h1>
                 <p className="text-sm text-muted-foreground">Gestion moderne des feux d'artifice</p>
               </div>
             </div>

client/src/pages/Login.tsx

@@ -69,7 +69,7 @@ export default function Login() {
             </div>
           </div>
           <div className="space-y-2">
-            <CardTitle className="text-3xl font-bold gradient-text">Registre des Ventes</CardTitle>
+            <CardTitle className="text-3xl font-bold gradient-text">RegisFlow</CardTitle>
             <p className="text-muted-foreground text-lg">Gestion moderne des feux d'artifice</p>
           </div>
         </CardHeader>

replit.md

@@ -1,4 +1,4 @@
-# Registre des Ventes de Pétards
+# RegisFlow
 
 ## Overview