big rework of progressbar/preview system to allow multiple users to prompts at the same time and do not get previews of each other

javascript/textualInversion.js

@@ -1,8 +1,17 @@
 
 
+
 function start_training_textual_inversion(){
-    requestProgress('ti')
     gradioApp().querySelector('#ti_error').innerHTML=''
 
-    return args_to_array(arguments)
+    var id = randomId()
+    requestProgress(id, gradioApp().getElementById('ti_output'), gradioApp().getElementById('ti_gallery'), function(){}, function(progress){
+        gradioApp().getElementById('ti_progress').innerHTML = progress.textinfo
+    })
+
+    var res = args_to_array(arguments)
+
+    res[0] = id
+
+    return res
 }