build: migrate .prettierrc.js to eslint.config.mjs

Author: mrholek

.prettierrc.js

@@ -6,7 +6,7 @@ import globals from 'globals'
 import typescriptEslint from 'typescript-eslint'
 
 export default typescriptEslint.config(
-  { ignores: ['**/*.d.ts', '**/coverage', '**/dist', '**/docs', 'eslint.config.mjs'] },
+  { ignores: ['**/*.d.ts', '**/coverage', '**/dist', '**/docs'] },
   {
     extends: [
       eslint.configs.recommended,
@@ -44,7 +44,7 @@ export default typescriptEslint.config(
         ...globals.node,
       },
 
-      ecmaVersion: 5,
+      ecmaVersion: 'latest',
       sourceType: 'module',
     },
   },

eslint.config.mjs

@@ -0,0 +1,13 @@
+/**
+ * @see https://prettier.io/docs/en/configuration.html
+ * @type {import("prettier").Config}
+ */
+const config = {
+  printWidth: 100,
+  semi: false,
+  singleQuote: true,
+  tabWidth: 2,
+  trailingComma: 'es5',
+};
+
+export default config;