Update packages, and migrate eslint configuration

This updates the eslint configuration to the new flat file format, which
is the future format.

Also adds eslint as a dev dependency. JS Projects should have locally
installed the correct versions of development tools like
eslint/prettier, etc. So developer experience is consistent; and not
depending on external context, like globally installed versions; but the
version that matches the configuration.

Also updates outdated packages, like typescript

Would have liked to update to eslint@9, but the typescript module does
not yet support 9 as a peer dependency.

.eslintignore

@@ -1,3 +0,0 @@
-node_modules/
-
-main.js

.eslintrc

@@ -1,23 +0,0 @@
-{
-    "root": true,
-    "parser": "@typescript-eslint/parser",
-    "env": { "node": true },
-    "plugins": [
-      "@typescript-eslint"
-    ],
-    "extends": [
-      "eslint:recommended",
-      "plugin:@typescript-eslint/eslint-recommended",
-      "plugin:@typescript-eslint/recommended"
-    ], 
-    "parserOptions": {
-        "sourceType": "module"
-    },
-    "rules": {
-      "no-unused-vars": "off",
-      "@typescript-eslint/no-unused-vars": ["error", { "args": "none" }],
-      "@typescript-eslint/ban-ts-comment": "off",
-      "no-prototype-builtins": "off",
-      "@typescript-eslint/no-empty-function": "off"
-    } 
-  }

eslint.config.mjs

@@ -0,0 +1,49 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import globals from "globals";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: ["**/node_modules/", "**/main.js"],
+}, ...compat.extends(
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended",
+), {
+    plugins: {
+        "@typescript-eslint": typescriptEslint,
+    },
+
+    languageOptions: {
+        globals: {
+            ...globals.node,
+        },
+
+        parser: tsParser,
+        ecmaVersion: 5,
+        sourceType: "module",
+    },
+
+    rules: {
+        "no-unused-vars": "off",
+
+        "@typescript-eslint/no-unused-vars": ["error", {
+            args: "none",
+        }],
+
+        "@typescript-eslint/ban-ts-comment": "off",
+        "no-prototype-builtins": "off",
+        "@typescript-eslint/no-empty-function": "off",
+    },
+}];

package.json

@@ -12,13 +12,17 @@
 	"author": "",
 	"license": "MIT",
 	"devDependencies": {
+		"@eslint/eslintrc": "^3.1.0",
+		"@eslint/js": "^9.8.0",
 		"@types/node": "^16.11.6",
-		"@typescript-eslint/eslint-plugin": "5.29.0",
-		"@typescript-eslint/parser": "5.29.0",
-		"builtin-modules": "3.3.0",
-		"esbuild": "0.17.3",
+		"@typescript-eslint/eslint-plugin": "^7.14.1",
+		"@typescript-eslint/parser": "^7.18.0",
+		"builtin-modules": "^4.0.0",
+		"esbuild": "^0.23.0",
+		"eslint": "^8.57.0",
+		"globals": "^15.8.0",
 		"obsidian": "latest",
-		"tslib": "2.4.0",
-		"typescript": "4.7.4"
+		"tslib": "2.6",
+		"typescript": "^5.5.2"
 	}
 }