More backend stuff

Before I can really start on the frontend, I want my backend codebase to be pretty clean so I can properly expand on it later.

• Added a logging system which outputs to a file when the window closes
• Added a DataController which handles setting up user data files (currently just an empty recents.json and logs directory)
• Made the Open Project button on the client redirect to the empty project page, and show the path to confirm it worked