Adjust the font size and icon in course cards for the "time" part

[jasmussen]

There’s also something about the font sizes and colors of these items at the footer:

The icon should be updated to use the new time icon from the Figma, and the font size and color of the text (6 hours) should be the same as that of 59 lessons.

This has been fixed in the Figma file, but was previously wrong there.