feat(branding): add unified Pipu Music app icons

apps/web/src/shared/ui/ui.module.css

@@ -21,9 +21,10 @@
 }
 
 .logoDot {
+  display: inline-block;
+  flex: none;
   border-radius: 50%;
-  background: radial-gradient(circle at 35% 30%, #9cc6ff, #2f80ff 55%, #3a1fa8);
-  box-shadow: 0 0 18px rgba(47, 128, 255, 0.55);
+  background: url('/favicon.svg') center / contain no-repeat;
 }
 
 .button {