memcard Day 12 of 14 Day MVP 🚀 - Landing, Editing, and Deleting

Decided to actually take a day break last time so we're on day 12 now.

Since last time I've added a landing page and support for editing/deleting cards. The landing page is only one section. I think that's good enough for MVP. I'll add more if needed.

Today I'll be working on adding essential keyboard shortcuts (used during study) and hopefully get image uploading up.