Adding an "All Songs/Tracks" view, full library shuffle and download all features

[TwocanuelSamuel]

This app looks so promising!

After installing it I immediately went to shuffle all of my music and noticed that i'm not actually able to view all of my tracks alphabetically.

Would it be possible to consider adding:
- An "All Songs" tab on the home page that displays all tracks alphabetically
- Play & Shuffle all buttons either in this new tab (if it makes more sense) or on the home page so it's easy to just shuffle all like in the favourites tab.
- A download all button (not sure where this makes the most sense) but would be nice to be able to download everything in one go instead of needing to download album by album/playlist etc. - Please correct me if this does exist and I just haven't found it.

The biggest friction for me trying so many different IOS client apps for Navidrome is that trying to shuffle everything is either hidden behind a lot of taps just to start my music (if i'm in a rush for something it's super annoying) or just don't have that ability at all.

Looking forward to v2 & CarPlay support too!

[MathieuDubart]

Thanks !
I'm currently working on a big redesign/feature improvement with all the 1.8.x releases, I'll try to include to include it inside 1.8.5 ;)