chore: expose utils in entry file

src/calendar/components/Month.js

@@ -1,9 +1,7 @@
 import { ref, computed, watch, nextTick } from 'vue';
 
 // Utils
-import { createNamespace, addUnit } from '../../utils';
-import { unitToPx } from '../../utils/format/unit';
-import { setScrollTop } from '../../utils/dom/scroll';
+import { addUnit, unitToPx, setScrollTop, createNamespace } from '../../utils';
 import { getMonthEndDay } from '../../datetime-picker/utils';
 import {
   t,

src/calendar/index.js

@@ -1,10 +1,8 @@
 import { ref, watch, reactive, computed, onMounted, onActivated } from 'vue';
 
 // Utils
-import { pick } from '../utils';
-import { raf } from '../utils/dom/raf';
+import { raf, pick, getScrollTop } from '../utils';
 import { isDate } from '../utils/validate/date';
-import { getScrollTop } from '../utils/dom/scroll';
 import {
   t,
   bem,