⚙️ Upgrade prettier config to .mjs

Author: pheralb

.prettierrc

@@ -0,0 +1,12 @@
+/** @type {import("prettier").Config} */
+const config = {
+  useTabs: false,
+  singleQuote: true,
+  trailingComma: 'none',
+  printWidth: 100,
+  plugins: ['prettier-plugin-svelte', 'prettier-plugin-tailwindcss'],
+  pluginSearchDirs: ['.'],
+  overrides: [{ files: '*.svelte', options: { parser: 'svelte' } }]
+};
+
+export default config;