v0.9.3

• replace deprecated call getScrollbarWidth() with OC.Util.getScrollbarWidth() (#667)
• update the getID3 library to version 1.9.16
• fix a bug on music library path changing when the previous library root is no longer present
• slightly tweak the width threshold between the "desktop" and "tablet" layouts
• declare support for Nextcloud 16
• declare support for ownCloud 10 (i.e. all 10.x versions instead of the former 10.1; oC is moving to semantic versioning)