That's an excellent suggestion, @CoreyCollins to improve the usability of Canvas for those of us who like to use keyboards. It's possible to tab through the links on Global Navigation to get to the Course Navigation links, but adding a shortcut (like there is to "skip to content") is possible. The best way to let the developers know is to suggest an improvement via the ideas process. The guides that explain how the process works are linked from the page where you can submit an idea:
Canvas Ideas
Currently the folks from Instructure are working on a process that is better able to respond to good ideas like yours, and in the meantime it's okay to submit new ones.
Creating an idea does not provide an immediate solution to the problem you described, though it is a solution. I’m going to mark it as such and hope that our colleagues who have a similar challenge will find the best way to contribute. If you decide to create an idea, please link it here.