Update dependencies

frontend/.npmrc

@@ -0,0 +1 @@
+save=true

frontend/.stylelintrc.js

@@ -1,14 +1,14 @@
 module.exports = {
-    plugins: ['stylelint-stylistic'],
+    plugins: ['@stylistic/stylelint-plugin'],
     defaultSeverity: 'warning',
     customSyntax: 'postcss-less',
     rules: {
-        'stylistic/no-eol-whitespace': true,
-        'stylistic/block-opening-brace-space-before': 'always-multi-line',
-        'stylistic/block-opening-brace-newline-after': 'always-multi-line',
-        'stylistic/block-opening-brace-space-after': 'always-single-line',
-        'stylistic/block-closing-brace-space-before': 'always-single-line',
-        'stylistic/block-closing-brace-newline-before': 'always-multi-line',
-        'stylistic/indentation': 4
+        '@stylistic/no-eol-whitespace': true,
+        '@stylistic/block-opening-brace-space-before': 'always-multi-line',
+        '@stylistic/block-opening-brace-newline-after': 'always-multi-line',
+        '@stylistic/block-opening-brace-space-after': 'always-single-line',
+        '@stylistic/block-closing-brace-space-before': 'always-single-line',
+        '@stylistic/block-closing-brace-newline-before': 'always-multi-line',
+        '@stylistic/indentation': 4
     }
 };

frontend/Gruntfile.js

@@ -83,7 +83,7 @@ module.exports = function (grunt) {
                 maxWarnings: grunt.option('maxWarnings'),
                 fix: grunt.option('fix')
             },
-            files: ['js/**/*.js', './{,.}*.js', '!js/libs/**/{,.}*']
+            files: ['.']
         },
 
         stylelint: {

frontend/eslint.config.mjs

@@ -0,0 +1,63 @@
+import globals from "globals";
+
+export default [{
+    ignores: ["js/libs", "src", "target"]
+}, {
+    rules: {
+        "no-trailing-spaces": "warn",
+        "keyword-spacing": "warn",
+
+        "space-before-function-paren": ["warn", {
+            named: "never",
+            anonymous: "always",
+            asyncArrow: "always"
+        }],
+
+        "function-call-argument-newline": ["warn", "consistent"],
+        "block-spacing": "warn",
+        "object-curly-spacing": ["warn", "always"],
+        "key-spacing": "warn",
+        "comma-dangle": "warn",
+        quotes: "warn",
+
+        "no-multiple-empty-lines": ["warn", {
+            max: 1
+        }],
+
+        semi: "warn",
+
+        indent: ["warn", 4, {
+            ignoredNodes: [
+                "Program > ExpressionStatement > CallExpression[callee.name=\"define\"] > FunctionExpression.arguments > .body"
+            ],
+
+            VariableDeclarator: 0
+        }],
+
+        "one-var": ["warn", "never"],
+        "space-infix-ops": "warn",
+        "no-multi-spaces": "warn",
+        "space-before-blocks": "warn"
+    }
+}, {
+    files: ["*.js"],
+
+    languageOptions: {
+        globals: {
+            ...globals.node
+        }
+    },
+
+    rules: {
+        quotes: ["warn", "single"]
+    }
+}, {
+    files: ["js/**/*"],
+
+    languageOptions: {
+        globals: {
+            ...globals.browser,
+            ...globals.amd
+        }
+    }
+}];