zhukov#1952 fix positioning of mixed url/callback_data inline buttons (zhukov#1953)

Author: artem-karpenko

app/less/app.less

@@ -2421,6 +2421,7 @@ a.im_message_fwd_photo {
 .reply_markup_button_wrap {
   display: inline-block;
   padding: 0 4px;
+  vertical-align: bottom;
 }
 .reply_markup_button {
   color: #3a6d99;