The current Watchlist (English Wikipedia, Vector skin) displays the Active Filters panel on the left.

• When collapsed, the [Show] button is thus on the left.
• When expanded, the [Hide] button is on the right.

Since the Show/Hide button is acting as a toggle switch, it should not move when "clicked".

Adjust the Active Filters panel to display on the right when collapsed, so that the Show/Hide button acts correctly as a toggle and does not move when clicked.

The following jQuery code demonstrates this change:

$( ".mw-rcfilters-ui-filterTagMultiselectWidget" )
  .css( 'text-align', 'left' )
  .wrap( $("<div>" ).css('text-align', 'right') );