add upload response (#3428)

* add upload response

* fixing comments

Co-authored-by: root <root@HQ-10MSTD3EY.roblox.local>

weed/server/filer_ui/filer.html

@@ -288,6 +288,11 @@
     function uploadFile(file, i) {
         var url = window.location.href;
         var xhr = new XMLHttpRequest();
+        xhr.onreadystatechange = function() {
+            if (xhr.readyState == XMLHttpRequest.DONE) {
+                location.reload();
+            }
+        }
         var fileName = file.name;
         xhr.upload.addEventListener('progress', function(e) {
             if (e.lengthComputable) {