Fix padding when multi-editing aligned widgets

Similar to T58668, labels were not aligned when multi-editing widgets
that are not center-aligned.

Reviewed by: Hans Goudey, Julian Eisel

Differential Revision: https://developer.blender.org/D8441

source/blender/editors/interface/interface_widgets.c

@@ -2403,7 +2403,7 @@ static void widget_draw_text_icon(const uiFontStyle *fstyle,
     }
     else if (but->flag & UI_BUT_DRAG_MULTI) {
       bool text_is_edited = ui_but_drag_multi_edit_get(but) != NULL;
-      if (text_is_edited) {
+      if (text_is_edited || (but->drawflag & UI_BUT_TEXT_LEFT)) {
         rect->xmin += text_padding;
       }
     }