Add @shadcn-studio registry URL to registries.json (#8332)

Added https://shadcnstudio.com/ opensource components (https://shadcnstudio.com/components), blocks (https://shadcnstudio.com/blocks), and themes (https://shadcnstudio.com/theme-generator) registry

Author: ajaypatelaj

apps/v4/public/r/registries.json

@@ -33,6 +33,7 @@
   "@limeplay": "https://limeplay.winoffrg.dev/r/{name}.json",
   "@skiper-ui": "https://skiper-ui.com/registry/{name}.json",
   "@shadcn-editor": "https://shadcn-editor.vercel.app/r/{name}.json",
+  "@shadcn-studio": "https://shadcnstudio.com/r/{name}.json",
   "@rigidui": "https://rigidui.com/r/{name}.json",
   "@retroui": "https://retroui.dev/r/{name}.json",
   "@wds": "https://wds-shadcn-registry.netlify.app/r/{name}.json",