First draft: add chromatic/storybook

.storybook/main.js

@@ -0,0 +1,17 @@
+/** @type { import('@storybook/html-webpack5').StorybookConfig } */
+const config = {
+  stories: ["../stories/**/*.mdx", "../stories/**/*.stories.@(js|jsx|ts|tsx)"],
+  addons: [
+    "@storybook/addon-links",
+    "@storybook/addon-essentials",
+    "@storybook/addon-interactions",
+  ],
+  framework: {
+    name: "@storybook/html-webpack5",
+    options: {},
+  },
+  docs: {
+    autodocs: "tag",
+  },
+}
+export default config

.storybook/preview.js

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+/** @type { import('@storybook/html').Preview } */
+const preview = {
+  parameters: {
+    actions: { argTypesRegex: "^on[A-Z].*" },
+    controls: {
+      matchers: {
+        color: /(background|color)$/i,
+        date: /Date$/,
+      },
+    },
+  },
+}
+
+export default preview