correct inputs (#4316)

* correct inputs

* initialize first

Author: falgun143

index.html

@@ -440,6 +440,13 @@
                         accept=".json"
                         tabindex="-1"
                     />
+                    <input
+                        class="file"
+                        type="file"
+                        id="audio"
+                        accept=".mp3, .wav"
+                        tabindex="-1"
+                    />
                     <input
                         class="file"
                         type="file"

js/block.js

@@ -2085,8 +2085,8 @@ class Block {
      * @param {number} thisBlock - Index of the current block.
      */
     _doOpenMedia(thisBlock) {
-        const fileChooser = docById("myOpenAll");
         const that = this;
+        const fileChooser = that.name=="media" ? docById("myMedia") : docById("audio");
 
         const __readerAction = () => {
             window.scroll(0, 0);