refactor: formatter and linter housekeeping

Signed-off-by: Griko Nibras <griko@nibras.co>

.eslintrc.js

@@ -0,0 +1,43 @@
+// @ts-check
+
+/**
+ * @type {import("eslint").Linter.Config}
+ * @see https://eslint.org/docs/latest/use/configure/
+ */
+const eslintConfig = {
+  extends: [
+    "next/core-web-vitals",
+    "eslint:recommended",
+    "plugin:@tanstack/eslint-plugin-query/recommended",
+    "plugin:prettier/recommended",
+  ],
+  plugins: ["simple-import-sort"],
+  rules: {
+    "@next/next/no-img-element": "off",
+    "simple-import-sort/exports": "warn",
+    "simple-import-sort/imports": "warn",
+  },
+  ignorePatterns: ["node_modules/", ".next/", "out/", "src/chains/*"],
+  overrides: [
+    {
+      files: ["*.ts", "*.tsx"],
+      extends: ["plugin:@typescript-eslint/recommended", "plugin:prettier/recommended"],
+      parser: "@typescript-eslint/parser",
+      plugins: ["@typescript-eslint"],
+      rules: {
+        "@typescript-eslint/ban-types": [
+          "error",
+          {
+            types: {
+              // un-ban a type that's banned by default
+              "{}": false,
+            },
+            extendDefaults: true,
+          },
+        ],
+      },
+    },
+  ],
+  root: true,
+};
+module.exports = eslintConfig;