[AutoAdd] Fix Windows display scaling breaking WebUI elements

Closes: https://github.com/deluge-torrent/deluge/pull/444

deluge/plugins/AutoAdd/deluge_autoadd/data/autoadd_options.js

@@ -17,7 +17,8 @@ Ext.ns('Deluge.ux.AutoAdd');
  */
 Deluge.ux.AutoAdd.AutoAddWindowBase = Ext.extend(Ext.Window, {
     width: 350,
-    autoHeight: true,
+    height: 500,
+    layout: 'fit',
     closeAction: 'hide',
 
     spin_ids: ['max_download_speed', 'max_upload_speed', 'stop_ratio'],
@@ -69,6 +70,7 @@ Deluge.ux.AutoAdd.AutoAddWindowBase = Ext.extend(Ext.Window, {
 
         this.form = this.add({
             xtype: 'form',
+            layout: 'fit',
             baseCls: 'x-plain',
             bodyStyle: 'padding: 5px',
             items: [