fix observer disconnect logic

javascript/progressbar.js

@@ -42,7 +42,6 @@ function check_progressbar(id_part, id_progressbar, id_progressbar_span, id_skip
                         skip.style.display = "none"
                     }
                     interrupt.style.display = "none"
-                }
 			
                     //disconnect observer once generation finished, so user can close selected image if they want
                     if (galleryObservers[id_gallery]) {
@@ -51,6 +50,9 @@ function check_progressbar(id_part, id_progressbar, id_progressbar_span, id_skip
                     }    
                 }
 
+
+            }
+
             window.setTimeout(function() { requestMoreProgress(id_part, id_progressbar_span, id_skip, id_interrupt) }, 500)
         });
         mutationObserver.observe( progressbar, { childList:true, subtree:true })