Add .ts / .tsx to resolvable extensions

To allow .ts and .tsx files webpack.config.js must be updated
with resolve.extensions parameter
This will ensure, that .ts and .tsx extensions must not be explicitly added in relative imports

examples/typescript/pages/webpack.config.js

@@ -2,6 +2,9 @@
  * It is necessary to add the ts-loader for .tsx files
  */
 module.exports = {
+    resolve: {
+        extensions: [".js", "md", "mdx", "jsx", ".ts", ".tsx"],
+    },
     module: {
         rules: [
             { test: /\.tsx?$/, loader: "ts-loader" }