build: Use ES module system

- Update package.json with type
- Change eleventy config to use import and export
- Add comments for jshint and inspection

.eleventy.js

@@ -1,7 +1,10 @@
-const {EleventyHtmlBasePlugin} = require("@11ty/eleventy");
+/* jshint strict: false */
 
-module.exports = function (eleventyConfig) {
-	eleventyConfig.addPlugin(EleventyHtmlBasePlugin);
+import {HtmlBasePlugin} from "@11ty/eleventy";
+
+// noinspection JSUnusedGlobalSymbols
+export default async function (eleventyConfig) {
+	eleventyConfig.addPlugin(HtmlBasePlugin);
 
 	eleventyConfig.setLiquidOptions({
 		// greedy: false,
@@ -82,4 +85,4 @@ module.exports = function (eleventyConfig) {
 		templateFormats: ['html', 'liquid', 'njk', 'md']
 		// pathPrefix: './demo/'
 	};
-};
+}

package.json

@@ -15,6 +15,7 @@
 		"type": "git",
 		"url": "https://quelltext.interaktionsweise.de/interaktionsweise/hippie.git"
 	},
+	"type": "module",
 	"scripts": {
 		"hello": "echo -n \"This is \" && node -p \"process.env.npm_package_name\" | tr '[:lower:]' '[:upper:]'",
 		"test": "echo \"Error: no test specified\" && exit 1",