[Bug][Grid] Enabling reorderable for the column in combination with columnMenu causes unexpected behavior when opening the columnMenu

[kdikov82]

Describe the bug
If the "reorderable" for the columns is enabled and if there is an open columnMenu, clicking on another column menu closes both menus. The expected behavior is that only the initially opened menu is closed and the newly clicked one will open.

To Reproduce
Open the following example:
https://stackblitz.com/edit/xe1yea?file=src%2Fmain.vue

1. Open the column menu for the first column
2. While the menu of the first column is opened, click to open the column menu for the second column
   You will notice that both menus will close.
   Disabling the "reorderable" will demonstrate the correct behavior.

Additional note
As a solution, we might exclude the column menu elements from triggering the reordering of the columns

Browser
Version: 5.1.0