Don't use relative imports like `../foo.h` as those depend on the
relative position of both files. Rather than that use imports relative
to the `src` directory, which explicitly is part of the include
directories.
* Navigation app:
- Renaming and reformatting according to coding conventions
- declare iconMap as constexpr and use char* instead of std::string
This reduces the flash usage from 424644B to 419344B (-5300B)!
new navigation
add some color to the apps
redesign menus
new settings menu
new quick settings
code clean up
size reduction by converting navigation images to font
and more...
