Update branding assets by replacing SVG logos with PNG versions for improved compatibility and performance. Update references in the BrandLogo component to use the new PNG logo. Additionally, update various favicon and touch icon files to align with the new branding.

dashboard/components/brand-logo.tsx

@@ -24,7 +24,7 @@ type BrandLogoProps = {
 export function BrandLogo({ className, size = 40, priority = false }: BrandLogoProps) {
   return (
     <Image
-      src="/logo.svg"
+      src="/logo.png"
       alt={process.env.NEXT_PUBLIC_BRAND_NAME || "Axiom"}
       width={size}
       height={size}