feat: integrate NextForm PNG logo across admin and mobile applications

apps/admin/src/components/ui/Sidebar.tsx

@@ -70,9 +70,9 @@ export function Sidebar() {
             <div className="p-6 border-b border-slate-800/50">
                 <div className="flex items-center gap-3 justify-center">
                     <img 
-                        src="/nextform.png" 
+                        src="/nextform-logo.png" 
                         alt="NextForm" 
-                        className="h-10 w-10"
+                        className="h-10 w-10 object-contain"
                     />
                     <div>
                         <h1 className="text-lg font-black bg-gradient-to-r from-blue-400 via-cyan-400 to-blue-300 bg-clip-text text-transparent">