Course Navigation: Lesson count

[merkushin]

We made it possible to apply colors for modules and lessons in Course Navigation.

There is an issue with spacings, however.

How to reproduce

1. Create a course with a few modules with a few lessons (and quizzes) in each.
2. Open the course in Learning mode.
3. Collapse a module.
4. Look at the lesson count.

Expected

I expect it has a consistent spacing between the module name and the lesson count.

Actual

The space between them is small.