Kanban app with Vue3 and Firebase

What are you most proud of, and what would you do differently next time?

Proud of:

• Drag and drop implementation (on both desktop and mobile)
• Modularized code (e.g. small components, use of Vue composables, etc.)
• Responsive UI (significant differences between desktop and mobile)
• Use of tailwind and global css variables
• Backend implementation (including separate collections for boards and cards, as well as debounced updates)
• Additional UI/UX features and improvements based on Trello features

Would avoid in retrospect:

• Prematurely refactoring code (i.e. only refactor if reused thrice rather than twice)
• Darkmode, as it's not a particularly sought-after feature in the real world

What challenges did you encounter, and how did you overcome them?

• Implementing drag and drop was probably the most challenging part of this task.
• Structuring the backend was also somewhat time-consuming, as I wanted to imitate Trello's ability to copy cards from one board to another.
• Handling blurred inputs was another area that was a bit challenging, as some inputs had accompanying buttons. In Vue, the blur handler always triggers first, meaning clicks on buttons that only exist when an input is focused may not register unless you add a workaround (e.g. return if relatedTarget is button).
• Ultimately, I decided to forgo the ability to have concurrent updates by users for shared boards, as that would add too much development time to this project, which I mainly intended to do to train my css skills (namely, the conversion of figma designs to an actual website).

What specific areas of your project would you like help with?

No specific area really. I recognize that accessibility of my website could be better, but that's in the backlog. I guess I'm mainly looking for feedback on general code quality, as well as anything else that might catch your eye. Thanks!