* Theme Switch: Refactor and add system option
Before, we had no way to reset the theme option to the system default. This introduces that option and refactors the theme switch to work in a simpler manner.
* Prevent account menu close on click inside
Context: #5476
* Remove Bootstrap/Creative CSS file customizability
Customizations should be done using themes
* Remove deprecated Casa and Classic themes
They are still available in the design system repo and should be added as custom theme CSS file
* Use either standard or custom theme
* Remove deprecated themes
* Improve theme select UI
* Finish and refactor theme switching
* updates theme copy
* Update BTCPayServer/Views/Server/Theme.cshtml
Co-authored-by: Zaxounette <51208677+Zaxounette@users.noreply.github.com>
* Combine creative.css and site.css
Co-authored-by: dstrukt <gfxdsign@gmail.com>
Co-authored-by: Zaxounette <51208677+Zaxounette@users.noreply.github.com>
