Pull request: beta client squashed

Merge in DNS/adguard-home from beta-client-2 to master

Squashed commit of the following:

commit b2640cc49a6c5484d730b534dcf5a8013d7fa478
Merge: 659def862 aef4659e9
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Tue Dec 29 19:23:09 2020 +0300

    Merge branch 'master' into beta-client-2

commit 659def8626467949c35b7a6a0c99ffafb07b4385
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Tue Dec 29 17:25:14 2020 +0300

    all: upgrade github actions node version

commit b4b8cf8dd75672e9155da5d111ac66e8f5ba1535
Author: Vladislav Abdulmyanov <v.abdulmyanov@adguard.com>
Date:   Tue Dec 29 16:57:14 2020 +0300

    all: beta client squashed

client2/scripts/lint/common.js

@@ -0,0 +1,79 @@
+module.exports = {
+    parser: '@typescript-eslint/parser',
+    parserOptions: {
+        project: './tsconfig.json',
+        ecmaFeatures: {
+            jsx: true
+        },
+        extraFileExtensions: ['mjs', 'tsx', 'ts'],
+        ecmaVersion: 2020,
+        sourceType: 'module'
+    },
+    plugins: ['react', '@typescript-eslint', 'import'],
+    env: {
+        browser: true,
+        commonjs: true,
+        es6: true,
+        es2020: true,
+        jest: true,
+    },
+    settings: {
+        react: {
+            pragma: 'React',
+            version: 'detect',
+        },
+        'import/resolver': {
+            typescript: {
+                alwaysTryTypes: true
+            }
+        },
+        'import/parsers': {
+            '@typescript-eslint/parser': ['.ts', '.tsx'],
+        },
+    },
+    rules: {
+        '@typescript-eslint/explicit-module-boundary-types': 0,
+        '@typescript-eslint/explicit-function-return-type': [0, { allowExpressions: true }],
+        '@typescript-eslint/indent': ['error', 4],
+        '@typescript-eslint/interface-name-prefix': [0, { prefixWithI: 'never' }],
+        '@typescript-eslint/no-explicit-any': [0],
+        '@typescript-eslint/naming-convention': [2, {
+            selector: 'enum', format: ['UPPER_CASE', 'PascalCase'],
+        }],
+        '@typescript-eslint/no-non-null-assertion': 0,
+        'arrow-body-style': 'off',
+        'consistent-return': 0,
+        curly: [2, 'all'],
+        'default-case': 0,
+        'import/no-cycle': 0,
+        'import/prefer-default-export': 'off',
+        'import/no-named-as-default': 0,
+        indent: [0, 4],
+        'no-alert': 2,
+        'no-console': 2,
+        'no-debugger': 2,
+        'no-underscore-dangle': 'off',
+        'no-useless-escape': 'off',
+        'object-curly-newline': 'off',
+        'react-hooks/exhaustive-deps': 0,
+        'react/display-name': 0,
+        'react/jsx-indent-props': ['error', 4],
+        'react/jsx-indent': ['error', 4],
+        'react/jsx-one-expression-per-line': 'off',
+        'react/jsx-props-no-spreading': 0,
+        'react/prop-types': 'off',
+        'react/state-in-constructor': 'off',
+    },
+    extends: [
+        'airbnb-base',
+        'airbnb-typescript/base',
+        'airbnb/hooks',
+        'plugin:react/recommended',
+        'plugin:@typescript-eslint/eslint-recommended',
+        'plugin:@typescript-eslint/recommended',
+        'plugin:import/errors',
+        'plugin:import/warnings',
+        'plugin:import/typescript',
+    ],
+    globals: {},
+};