Feature Request: Fixed 'Configure' button in palette menu
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#### Steps to reproduce:
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- open Inkscape
- install 20 or more palettes (e.g. using InkStitch extension)
- click palette menu button to configure
#### What happened?
A long list of palette options pushes the configure button down the scrolling menu area.
#### What should have happened?
When working with lots of different palettes, one often needs to switch from one to the other and change the number of rows for better user experience. It feels not quite right that the configure button disappears down the menu. It should preferably be fixed in the popup menu.
#### Inkscape Version and Operating System:
- Inkscape Version: 1.4 beta3
- Operating System: Ubuntu
- Operating System version: 20.04
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issue