refactor: updated to eslint 9, dropped airbnb preset

* refactor: removed unused eslint packages

* refactor: updated to eslint 9, dropped airbnb preset

* refactor: fixed react demo components

eslint.config.mjs

@@ -0,0 +1,68 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import tseslint from "typescript-eslint";
+import pluginReact from "eslint-plugin-react";
+import eslintConfigPrettier from "eslint-config-prettier";
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+    {
+        files: ["**/*.{js,mjs,cjs,ts,jsx,tsx}"],
+    },
+    {
+        ignores: [
+            '**/build/',
+            '**/build-ide/',
+            '**/coverage/',
+            '**/test/data/',
+            'scripts/',
+            'packages/h5p-examples/h5p/',
+            'packages/h5p-rest-example-server/h5p/',
+            '**/node_modules/',
+            '**/*.d.ts',
+            '**/*.config.js',
+            'packages/h5p-html-exporter/src/**/*.js',]
+    },
+    { languageOptions: { globals: { ...globals.browser, ...globals.node } } },
+    pluginJs.configs.recommended,
+    ...tseslint.configs.recommended,
+    pluginReact.configs.flat.recommended,
+    {
+        settings: {
+            react: {
+                "version": "18"
+            }
+        }
+    },
+    eslintConfigPrettier,
+    {
+        rules: {
+            "@typescript-eslint/no-explicit-any": "off",
+            "@typescript-eslint/no-unused-vars": ["warn",
+                { "argsIgnorePattern": "^_" }
+            ],
+            "no-console": "warn",
+            "no-await-in-loop": "warn", // TODO : make error later
+            "no-param-reassign": "error",
+            "react/prop-types": "warn", // TODO : make error later
+            '@typescript-eslint/member-ordering': [
+                'error',
+                {
+                    default: [
+                        'public-constructor',
+                        'private-constructor',
+                        'public-static-field',
+                        'private-static-field',
+                        'public-instance-field',
+                        'private-instance-field',
+                        'public-static-method',
+                        'private-static-method',
+                        'public-instance-method',
+                        'private-instance-method'
+                    ]
+                }
+            ],
+
+        }
+    }
+];