chore(): fix and run linter, bump node version to LTS

.eslintrc.cjs

@@ -20,7 +20,7 @@ module.exports = {
     node: true,
     jest: true,
   },
-  ignorePatterns: ['.eslintrc.js'],
+  ignorePatterns: ['.eslintrc.js', 'webpack.config.js'],
   rules: {
     '@typescript-eslint/interface-name-prefix': 'off',
     '@typescript-eslint/explicit-function-return-type': 'off',
@@ -30,5 +30,24 @@ module.exports = {
     '@typescript-eslint/ban-types': 'off',
     'simple-import-sort/imports': 'error',
     'simple-import-sort/exports': 'error',
+    'array-bracket-spacing': ['error', 'never'],
+    'linebreak-style': ['error', 'unix'],
+    'lines-between-class-members': ['warn', 'always'],
+    semi: ['error', 'always'],
+    'new-cap': 'off',
+    'no-console': 'off',
+    'no-debugger': 'off',
+    'no-mixed-spaces-and-tabs': 2,
+    'no-use-before-define': [2, 'nofunc'],
+    'no-unreachable': ['warn'],
+    // 'no-unused-vars': ['warn'],
+    'no-extra-parens': ['off'],
+    'no-mixed-operators': ['off'],
+    quotes: [2, 'single', 'avoid-escape'],
+    'block-scoped-var': 2,
+    'brace-style': [2, '1tbs', { allowSingleLine: true }],
+    'computed-property-spacing': [2, 'never'],
+    'keyword-spacing': 2,
+    'space-unary-ops': 2,
   },
 };