feat: add shadcn/registry (#6339)

* feat: implement shadcn/registry

* feat: add schema field

* fix: import

* chore: add changeset

* chore: remove console

* fix: tests

* fix: diff command

* feat: move to schema/registy-item.json

* fix

* ci: switch to node 20

* ci: build packages

vitest.config.ts

@@ -7,7 +7,12 @@ export default defineConfig({
       ...configDefaults.exclude,
       "**/node_modules/**",
       "**/fixtures/**",
+      "**/templates/**",
     ],
   },
-  plugins: [tsconfigPaths()],
+  plugins: [
+    tsconfigPaths({
+      ignoreConfigErrors: true,
+    }),
+  ],
 })