Update eslint and prettier npm packages

Involves migrating eslint configuration to eslint.config.js
https://eslint.org/docs/latest/use/configure/migration-guide#migrate-your-config-file

tildes/eslint.config.js

@@ -0,0 +1,22 @@
+import js from "@eslint/js";
+import globals from "globals";
+import eslintPluginPrettierRecommended from "eslint-plugin-prettier/recommended";
+
+export default [
+    js.configs.recommended,
+    eslintPluginPrettierRecommended,
+    {
+        languageOptions: {
+            globals: {
+                ...globals.browser,
+                $: "readonly",
+                Intercooler: "readonly",
+                Promise: "readonly",
+                Tildes: "readonly",
+            },
+        },
+    },
+    {
+        ignores: ["static/js/third_party*", "static/js/tildes.js"],
+    },
+];

tildes/package.json

@@ -10,32 +10,13 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "eslint": "^5.16.0",
-    "eslint-config-prettier": "^4.3.0",
-    "eslint-plugin-prettier": "^3.1.0",
-    "prettier": "^1.17.1",
+    "eslint": "^9.35.0",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-prettier": "^5.5.4",
+    "prettier": "^3.6.2",
     "stylelint": "^10.0.1",
     "stylelint-scss": "^3.6.0"
   },
-  "eslintConfig": {
-    "env": {
-      "browser": true
-    },
-    "extends": [
-      "eslint:recommended",
-      "plugin:prettier/recommended"
-    ],
-    "globals": {
-      "$": "readonly",
-      "Intercooler": "readonly",
-      "Promise": "readonly",
-      "Tildes": "readonly"
-    }
-  },
-  "eslintIgnore": [
-    "static/js/third_party*",
-    "static/js/tildes.js"
-  ],
   "prettier": {
     "bracketSpacing": false,
     "printWidth": 88,