Consolidate styles (#1116)

* Consolidate styles into a Styles class and clean up code

* Format

* Add style_bg_dark_grey for nav bar

* Fix bugs found in PR

* Rename styles

* Add bg_white style

---------

Co-authored-by: kallanreed <kallanreed@outlook.com>
Co-authored-by: gullradriel <3157857+gullradriel@users.noreply.github.com>

firmware/application/apps/ui_nuoptix.hpp

@@ -25,7 +25,6 @@
 
 #include "ui.hpp"
 #include "ui_widget.hpp"
-#include "ui_font_fixed_8x16.hpp"
 #include "baseband_api.hpp"
 #include "ui_navigation.hpp"
 #include "ui_transmitter.hpp"