Allow Nomad's availability button position to be customizable
For certain sites it may be more practical to have the Nomad button appear at a different location on the screen. Allow the user to customize their preference for its positioning.
This will be helpful because many sites have a cookie notice banner at the bottom that covers the LibKey Nomad button. For example, On Taylor & Francis journal pages, the top of the popup is just visible over the cookie banner, so you can still click it. But there are other pages where we don’t even see the popup because it is fully covered by the banner.