Tim van der Meij e3838c1c70
Introduce a CSS variable for the toolbar height (bug 1171799)
This refactoring lays the foundation for making the toolbar height
configurable in Firefox via the `browser.uidensity` preference. For
this to work correctly the toolbar height must be defined in a single
place that can easily be updated dynamically, hence this patch which
moves it to a CSS variable in such a way that the rest of the UI adapts
correctly if the value is changed.

Co-authored-by: Calixte Denizet <calixte.denizet@gmail.com>
2024-07-30 21:22:49 +02:00
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