enhancement-506: configure eslint

.prettierrc

@@ -1,6 +1,6 @@
 {
   "printWidth": 100,
-  "parser": "flow",
+  "parser": "typescript",
   "tabWidth": 2,
   "useTabs": false,
   "semi": true,

eslint.config.mjs

@@ -0,0 +1,35 @@
+import typescriptEslint from 'typescript-eslint';
+import prettierPlugin from 'eslint-plugin-prettier';
+import eslintConfigPrettier from 'eslint-config-prettier';
+
+export default [
+  {
+    files: ['src/**/*.{ts,js,mjs}'],
+    ignores: ['dist', 'node_modules']
+  },
+  ...typescriptEslint.configs.recommended,
+  {
+    plugins: {
+      prettier: prettierPlugin
+    },
+    rules: {
+      ...prettierPlugin.configs.recommended.rules,
+      ...eslintConfigPrettier.rules,
+
+      // TODO: to improve because the basic rules cause
+      // thousands of errors, for this reason, they have been marked as WARN
+      'prettier/prettier': 'warn',
+
+      'prefer-const': 'warn',
+      'prefer-rest-params': 'warn',
+      'no-var': 'warn',
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/no-unused-vars': 'warn',
+      '@typescript-eslint/no-unused-expressions': 'warn',
+      '@typescript-eslint/no-this-alias': 'warn',
+      '@typescript-eslint/no-empty-object-type': 'warn',
+      '@typescript-eslint/no-require-imports': 'warn',
+      '@typescript-eslint/no-unsafe-function-type': 'warn'
+    }
+  }
+];