add "import/extensions" and "unicorn" eslint rules

Author: mvorisek

js/.eslintrc.js

@@ -6,32 +6,38 @@ module.exports = {
     extends: [
         'plugin:jsdoc/recommended',
         'airbnb-base',
+        'plugin:unicorn/recommended',
         'plugin:vue/vue3-recommended',
     ],
     parserOptions: {
         ecmaVersion: '2020',
         sourceType: 'module',
     },
-    plugins: [
-        'vue',
-    ],
+    settings: {
+        'import/resolver': 'webpack',
+    },
     rules: {
         indent: ['error', 4, { SwitchCase: 1 }],
+        curly: ['error', 'all'],
         'object-shorthand': ['error', 'never'],
         'func-names': ['error', 'never'],
         'no-param-reassign': 'off',
         'class-methods-use-this': 'off',
-        'import/no-unresolved': 'off',
         'no-plusplus': 'off',
         'consistent-return': 'off',
         'no-nested-ternary': 'off',
         'default-case': 'off',
-        'import/prefer-default-export': 'off',
         'no-console': ['error', { allow: ['warn', 'error'] }],
+        'no-restricted-syntax': 'off',
         'no-underscore-dangle': 'off',
         'max-len': 'off',
         'prefer-template': ['off'],
         'no-unused-vars': ['error', { vars: 'all', args: 'none' }],
+        'padding-line-between-statements': ['error', {
+            blankLine: 'always',
+            prev: '*',
+            next: ['continue', 'break', 'export', 'return', 'throw'],
+        }],
         'spaced-comment': ['error', 'always', {
             line: {
                 markers: ['/'],
@@ -43,13 +49,30 @@ module.exports = {
                 balanced: true,
             },
         }],
+        'import/no-unresolved': 'off',
+        'import/prefer-default-export': 'off',
+        'import/extensions': ['error', 'always', {
+            '': 'never',
+            js: 'never',
+            vue: 'never',
+        }],
         'vue/html-indent': ['error', 4],
         'jsdoc/require-param': 'off',
         'jsdoc/require-param-description': 'off',
         'jsdoc/require-returns': 'off',
         'jsdoc/require-returns-description': 'off',
         'jsdoc/require-jsdoc': 'off',
         'jsdoc/check-line-alignment': ['error', 'always'],
+        'unicorn/catch-error-name': 'off',
+        'unicorn/no-array-callback-reference': 'off',
+        'unicorn/no-lonely-if': 'off',
+        'unicorn/no-negated-condition': 'off',
+        'unicorn/no-null': 'off',
+        'unicorn/no-this-assignment': 'off',
+        'unicorn/prefer-logical-operator-over-ternary': 'off', // nullish coalescing operator has limited support
+        'unicorn/prefer-module': 'off',
+        'unicorn/prevent-abbreviations': 'off',
+        'unicorn/switch-case-braces': ['error', 'avoid'],
     },
     reportUnusedDisableDirectives: true,
 };