chore(bin): migrate to ES module

Author: nikku

bin/diffpatch

@@ -1,8 +1,9 @@
 #!/usr/bin/env node
 
-const diffpatch = require('..');
+import { DiffPatcher } from '../lib/index.js';
+import ConsoleFormatter from '../lib/formatters/console.js';
 
-const fs = require('fs');
+import fs from 'node:fs';
 
 const fileLeft = process.argv[2];
 const fileRight = process.argv[3];
@@ -15,5 +16,6 @@ if (!fileLeft || !fileRight) {
 const left = JSON.parse(fs.readFileSync(fileLeft));
 const right = JSON.parse(fs.readFileSync(fileRight));
 
-const delta = diffpatch.diff(left, right);
-diffpatch.console.log(delta);
+const delta = new DiffPatcher().diff(left, right);
+
+console.log(new ConsoleFormatter().format(delta));