Better navigation bar

[zjkmxy]

The navigation bar on the left takes too much space so users cannot open two windows side-by-side.
A better design may be like the navigation rail in material 3: https://m3.material.io/components/navigation-rail/overview
MUI's Tab should be a great fit for this,
but unfortunately SUID has not ported this component yet: swordev/suid#120
So we have to use other component to simulate.

If you want to use other MUI components, make sure to check if SUID has ported them.
If you want to use Google's material web,
you can also do it.
I would hesitate to import another UI library.