fix more file extensions

Author: epicfaace

packages/core/playground/samples/allOf.js renamed to packages/core/playground/samples/allOf.tsx

@@ -1,6 +1,6 @@
 import React from "react";
 import PropTypes from "prop-types";
-import DescriptionField from "../fields/DescriptionField.js";
+import DescriptionField from "../fields/DescriptionField";
 
 // Check to see if a schema specifies that a value must be true
 function schemaRequiresTrueValue(schema) {

packages/core/src/components/widgets/CheckboxWidget.tsx

@@ -6,7 +6,7 @@ module.exports = {
  mode: "production",
  cache: true,
  context: __dirname + "/src",
- entry: "./index.js",
+ entry: "./index.tsx",
  output: {
  path: path.join(__dirname, "dist"),
  publicPath: "/dist/",