Option for browsing folders as a tree structure

[orblivion]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one feature request.
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Feature description

An option to browse folders in the traditional way, as a tree structure. Then I can ask it to "play folder" which will play the entire tree structure of that folder. This may include having a chosen "root" or "default" directory/directories when I first click on the "Folders" tab. (#59 may be related).

Currently, the Folder browser appears to be a "flat" structure, where all of the lowest level directories that hold audio files are in one big list, and the higher level folders are not listed.

Why do you want this feature?

I have the standard use case of "play album" or "play artist". However I prefer to use the directory structure for this use case rather than tag based browsing.

Why not tags? Organizing a music library by tag accurately appears to be notoriously difficult for music players. I've always found some rapper "featured" on a track show up as another artist. This could be an issue with how my music is tagged, but fixing this by editing tags is not for everyone. Sorting by directory is much simpler. See: https://dustri.org/b/horrible-edge-cases-to-consider-when-dealing-with-music.html

(That said, for the stray music tracks I have not associated with any album, tag based browsing is a good idea)

Additional information

No response