feat: Loading indicator for panels 2

[janmichek]

Description

fixes #391

Demo

firefox_8Fz0RHlF1N.mp4

Checklist:

• I have read and followed the Contributing Guide

• add panel loader

[github-actions]

Deployed to https://pr-441-aescan.stg.aepps.com

[lukeromanowicz]

For now, it works pretty decently but it involves slight code duplication that we can easily reduce by creating a composable. In the future we could probably add some animation to make it even nicer but I don't think we should focus on that right now

[michele-franchi]

It looks really good to me. The only thing I noticed is that the vertical padding in the panel looks less then the one applied with tables so I would keep the same one but I approve in advance.

[janmichek]

It looks really good to me. The only thing I noticed is that the vertical padding in the panel looks less then the one applied with tables so I would keep the same one but I approve in advance.

Good catch, adjusted

[lukeromanowicz]

I suggested one minor improvement for the sake of consistency and I think it would be also nice to somehow preload or at least cache the loading indicator svg so it's visible in the very beginning just like the loading text.

That being said these are minor stuff that we can also fix with a follow-up task if you want.

2023-08-10.08-43-06.mp4

[lukeromanowicz]

@janmichek please ignore the part about caching... I had "disable caching" enabled 🤦‍♂️

[Liubov-crypto]

LGTM