Musclegroup tags/sort

[ZS041]

Implement tags by muscle group for exercises, and sorting by tag. Entry/exit animations on exercises, both on page load and sort utilizing Framer Motion.

Changed the styling of the previously implemented Navbar change with navigational cue highlighting to more closely fit with the theme of the site, and give a clear indication of what link you are currently on, and which you are hovering.

https://user-images.githubusercontent.com/80226316/235320865-05b14edf-2e59-4edd-835d-2a32b89ccba8.mp4