Fix react configs

Signed-off-by: Émile Ré <emile@getprobo.com>

packages/eslint-config/src/reactConfigs.ts

@@ -3,9 +3,18 @@ import reactHooks from "eslint-plugin-react-hooks";
 import type { FlatConfig } from "typescript-eslint";
 
 export const reactConfigs: FlatConfig.ConfigArray = [
+  react.configs.flat.recommended,
+  react.configs.flat["jsx-runtime"],
+  {
+    rules: {
+      ...react.configs.flat.recommended.rules,
+      ...react.configs.flat["jsx-runtime"].rules,
+      // onScrollEnd is a valid React 19 event handler, but eslint-plugin-react
+      // doesn't support it yet. See: https://github.com/jsx-eslint/eslint-plugin-react/pull/3958
+      "react/no-unknown-property": ["error", { ignore: ["onScrollEnd"] }],
+    },
+  },
   {
-    ...react.configs.flat.recommended,
-    ...react.configs.flat["jsx-runtime"],
     settings: {
       react: {
         version: "detect",