feat: fix storybook config

unraid-ui/scripts/build-style.mjs

@@ -0,0 +1,30 @@
+import fs from 'fs/promises';
+import autoprefixer from 'autoprefixer';
+import postcss from 'postcss';
+import postcssImport from 'postcss-import';
+import tailwindcss from 'tailwindcss';
+
+/**
+ * Helper script for storybook to build the CSS file for the components. This is used to ensure that modals render using the shadow styles.
+ */
+
+process.env.VITE_TAILWIND_BASE_FONT_SIZE = 16;
+
+const inputPath = './src/styles/index.css';
+const outputPath = './.storybook/static/index.css'; // served from root: /index.css
+
+const css = await fs.readFile(inputPath, 'utf8');
+
+const result = await postcss([
+  postcssImport(),
+  tailwindcss({ config: './tailwind.config.ts' }),
+  autoprefixer(),
+]).process(css, {
+  from: inputPath,
+  to: outputPath,
+});
+
+await fs.mkdir('./.storybook/static', { recursive: true });
+await fs.writeFile(outputPath, result.css);
+
+console.log('✅ CSS built for Storybook:', outputPath);