Stepping on a Bootstrap rake while using CSS Grid for the first time

So this week I’ve been building out the frontend for a note-taking app I’m working on. In the process of building this I believe I made some beginner mistakes that I’d like to learn from, and maybe y’all can too, so I’m noting them down here. After getting over my initial impatience and just wanting to get the UI figured out so that I could work on the backend, I realized that understanding why I had made some of these mistakes was fundamental to both my understanding of frontend languages like HTML and CSS and improving my frontend…