feat: #420 reimplement icon picker (#421)

packages/validation/src/index.ts

@@ -1,6 +1,7 @@
 import { appSchemas } from "./app";
 import { boardSchemas } from "./board";
 import { groupSchemas } from "./group";
+import { iconsSchemas } from "./icons";
 import { integrationSchemas } from "./integration";
 import { locationSchemas } from "./location";
 import { userSchemas } from "./user";
@@ -14,6 +15,7 @@ export const validation = {
   app: appSchemas,
   widget: widgetSchemas,
   location: locationSchemas,
+  icons: iconsSchemas,
 };
 
 export { createSectionSchema, sharedItemSchema } from "./shared";