chore(eslint): reintegrate simple import sort

eslint.config.mjs

@@ -3,6 +3,7 @@
 import eslint from '@eslint/js';
 import { defineConfig, globalIgnores } from 'eslint/config';
 import tseslint from 'typescript-eslint';
+import simpleImportSort from "eslint-plugin-simple-import-sort";
 
 export default defineConfig(
   globalIgnores([
@@ -29,5 +30,26 @@ export default defineConfig(
         tsconfigRootDir: import.meta.dirname
       }
     }
+  },
+  {
+    plugins: {
+      "simple-import-sort": simpleImportSort
+    },
+
+    rules: {
+      "no-undef": "off",
+      "no-unused-vars": "off",
+
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          argsIgnorePattern: "^_",
+          varsIgnorePattern: "^_"
+        }
+      ],
+
+      "simple-import-sort/imports": "error",
+      "simple-import-sort/exports": "error"
+    }
   }
 );