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_numbers.hpp

@@ -27,7 +27,6 @@
 #include "ui_widget.hpp"
 #include "ui_receiver.hpp"
 #include "ui_navigation.hpp"
-#include "ui_font_fixed_8x16.hpp"
 #include "rtc_time.hpp"
 #include "clock_manager.hpp"
 #include "baseband_api.hpp"
@@ -63,11 +62,6 @@ class NumbersStationView : public View {
         SIGNOFF
     };
 
-    Style style_red{
-        .font = font::fixed_8x16,
-        .background = Color::black(),
-        .foreground = Color::red()};
-
     typedef struct {
         char code;
         uint32_t index;