perf(tpl): narrow element search range into document.body

Author: marjune163

src/tpl/assert/main.js

@@ -1,6 +1,6 @@
 (function () {
 	function enableDragUpload() {
-		var upload = document.querySelector('.upload');
+		var upload = document.body.querySelector('.upload');
 		if (!upload || !upload.addEventListener) {
 			return;
 		}
@@ -44,7 +44,7 @@
 	}
 
 	function enableNonRefreshDelete() {
-		var itemList = document.querySelector('.item-list');
+		var itemList = document.body.querySelector('.item-list');
 		if (!itemList || !itemList.addEventListener) {
 			return;
 		}

src/tpl/assert/main.js.go

@@ -3,7 +3,7 @@ package assert
 const mainJs = `
 (function () {
 function enableDragUpload() {
-var upload = document.querySelector('.upload');
+var upload = document.body.querySelector('.upload');
 if (!upload || !upload.addEventListener) {
 return;
 }
@@ -39,7 +39,7 @@ upload.addEventListener('dragleave', onDragLeave);
 upload.addEventListener('drop', onDrop);
 }
 function enableNonRefreshDelete() {
-var itemList = document.querySelector('.item-list');
+var itemList = document.body.querySelector('.item-list');
 if (!itemList || !itemList.addEventListener) {
 return;
 }