Jovo CV update and modularizing codebase (#691)

1000+ lines of code in jovo.html is modularized. Redundant code is replaced with partial html code snippet which is now being referenced from jovo.html. Also, main Jovo's CV content saved in jovo.html is saved as a distinct yaml file in content/pages. These changes reduced ~1.4k lines of code into ~350 lines.

This PR fixes #672 and #690, though there are more sections that could be optimized for issue #690.