refactor(collection): remove default export (#8053)

packages/collection/__tests__/collection.test.ts

@@ -1,5 +1,5 @@
 import { describe, test, expect } from 'vitest';
-import Collection from '../src';
+import { Collection } from '../src';
 
 type TestCollection = Collection<string, number>;
 

packages/collection/src/index.ts

@@ -776,5 +776,3 @@ export type Keep<V> = { keep: true; value: V } | { keep: false };
  * @internal
  */
 export type Comparator<K, V> = (firstValue: V, secondValue: V, firstKey: K, secondKey: K) => number;
-
-export default Collection;