Un-bloat app settings

Description

Move as many setting as we can from the app settings to the related UI.

• Prefs -> Interface -> "Show all files in browser"
• Prefs -> Advanced -> "Show hidden files"
• Prefs -> Interface -> "No grid in portrait mode" (may be complicated)
• Prefs -> Interface -> "Show all artists"

Expected behavior

Screenshot / video

App mode

Smartphone