fix: drop support for Node 16, update linter, add JSDoc linting

eslint.config.js

@@ -0,0 +1,55 @@
+const globals = require('globals');
+const eslint = require('@eslint/js').configs.recommended;
+const prettier = require('eslint-plugin-prettier/recommended');
+const jsdoc = require('eslint-plugin-jsdoc').configs['flat/recommended'];
+const jest = require('eslint-plugin-jest').configs['flat/recommended'];
+
+module.exports = [
+  {
+    ...jsdoc,
+    files: ['packages/utilities/**/*.js'],
+    ignores: ['**/*.test.js'],
+  },
+  {
+    ...eslint,
+    files: ['**/*.js'],
+    ignores: ['**/*.test.js'],
+  },
+  {
+    ...jest,
+    files: ['**/*.test.js'],
+  },
+  {
+    ...prettier,
+    files: ['**/*.js'],
+    ignores: ['**/*.test.js'],
+    languageOptions: {
+      ecmaVersion: 13,
+      globals: {
+        ...globals.node,
+        mocha: true,
+        jest: true,
+        AggregateError: 'readonly',
+      },
+    },
+    rules: {
+      ...prettier.rules,
+      'prettier/prettier': [
+        'error',
+        {
+          singleQuote: true,
+          arrowParens: 'avoid',
+          trailingComma: 'es5',
+        },
+      ],
+    },
+  },
+  {
+    rules: {
+      'jsdoc/require-returns-description': 'off',
+      'no-console': 0,
+      'no-var': 'error',
+      'prefer-const': 'error',
+    },
+  },
+];