change to Pdf.js-Legacy Version 4.3.136 (#1444)

* add: PDF.js-Legacy

* change path

src/main/resources/static/pdfjs-legacy/pdf.worker.entry.js

@@ -0,0 +1,19 @@
+/* Copyright 2022 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(typeof window !== "undefined"
+        ? window
+        : {}
+).pdfjsWorker = require("./pdfjs-legacy/pdf.worker.mjs");