term: Fix shell_resized for abstract_ui

src/nvim/term.c

@@ -2206,8 +2206,12 @@ void win_new_shellsize(void)
  */
 void shell_resized(void)
 {
+  if (abstract_ui) {
+    ui_refresh();
+  } else {
     screen_resize(0, 0, FALSE);
   }
+}
 
 /*
  * Check if the shell size changed.  Handle a resize.