Fix: Course Lesson Count Contrast (#3448)
Fix: Course Lesson Count Contrast (#3448)

Because:
* The lesson count on course cards was hard to see on light mode.

Before:
<img width="921" alt="Screenshot 2022-10-19 at 17 57 52"
src="https://user-images.githubusercontent.com/7963776/196756182-5897ad36-7fad-4321-8c02-82787efa695f.png">

After:
<img width="927" alt="Screenshot 2022-10-19 at 17 57 42"
src="https://user-images.githubusercontent.com/7963776/196756190-44327cc1-079d-497c-89d2-78760202bb67.png">
TheOdinProject/theodinproject,TheOdinProject/theodinproject,TheOdinProject/theodinproject,TheOdinProject/theodinproject