chore(about): update copyright year and credits for 2026

lib/src/about_screen.dart

@@ -38,7 +38,7 @@ class AboutScreen extends StatelessWidget {
                 Credits(),
 
                 Footer(children: children),
-                const Text("MarketTakers (c) 2025"),
+                const Text("MarketTakers (c) 2026"),
               ],
             ),
           ),

lib/src/credits.dart

@@ -10,7 +10,7 @@ class Credits extends StatelessWidget {
       children: [
         const Text("Made with "),
         const Icon(Icons.favorite, color: Colors.red),
-        const Text(" by Skipper, Clewerwild and karabyn2187"),
+        const Text(" by MT.Dev team"),
       ],
     );
   }