Update ESLint (#84)

eslint.config.mjs

@@ -0,0 +1,47 @@
+import esLintJs from "@eslint/js";
+import eslintTs from "typescript-eslint";
+
+export default [
+    esLintJs.configs.recommended,
+    ...eslintTs.configs.strictTypeChecked,
+    ...eslintTs.configs.stylisticTypeChecked,
+    {
+        files: ["**/*.ts"],
+        languageOptions: {
+            parserOptions: {
+                projectService: true,
+                tsconfigRootDir: import.meta.dirname,
+            },
+        },
+        rules: {
+            "@typescript-eslint/consistent-type-imports": "warn",
+            "@typescript-eslint/explicit-member-accessibility": "warn",
+            "@typescript-eslint/no-confusing-void-expression": "off", // Temporary.
+            "@typescript-eslint/no-floating-promises": "off", // Temporary.
+            "@typescript-eslint/no-invalid-void-type": "off", // Temporary.
+            "@typescript-eslint/no-misused-promises": "off", // Temporary.
+            "@typescript-eslint/no-unnecessary-condition": "off", // Temporary.
+            "@typescript-eslint/require-await": "off", // Temporary.
+            "@typescript-eslint/restrict-plus-operands": "off", // Temporary.
+            "@typescript-eslint/restrict-template-expressions": "off", // Temporary.
+            "no-duplicate-imports": "warn",
+            "no-multi-spaces": "warn",
+            "no-multiple-empty-lines": [
+                "warn",
+                {
+                    max: 1,
+                },
+            ],
+            "padded-blocks": ["warn", "never"],
+            quotes: [
+                "warn",
+                "double",
+                {
+                    avoidEscape: true,
+                },
+            ],
+            semi: "warn",
+            "sort-imports": "warn",
+        },
+    },
+];