Also given that it is frontend land, I am not sure any of the tools now available will be available (and compatible) in 10 years. And because it is a side project I would not spend one second worrying about 10 years from now.
HN will not tell you what you will like. Every now and then a question like this is asked and people just tell OP the tools they currently use.
I guess it would be best to create a mini app (reading a list of things from a backend and render it and maybe delete something from the list) in two or three frontend frameworks and then choose the one that felt the nicest for you.
As for design I guess Tailwind CSS is something for you. It is easy to make web sites that look nice. (All tailwind CSS sites look kind of the same, but this is OK)
Good luck with you project!