main/postmarketos-ui-plasma-mobile: use xdg-user-dirs (MR 1432)

main/postmarketos-ui-plasma-mobile/APKBUILD

 # Maintainer: Bart Ribbers <bribbers@disroot.org>
 pkgname=postmarketos-ui-plasma-mobile
 pkgver=3
-pkgrel=0
+pkgrel=1
 pkgdesc="(Wayland) Mobile variant of KDE Plasma (does not run without hardware acceleration, allows only numeric passwords!)"
 url="https://wiki.postmarketos.org/wiki/Plasma_Mobile"
 arch="noarch !armhf" # Crashes on armhf due to https://gitlab.com/postmarketOS/pmaports/issues/75
@@ -47,6 +47,7 @@ _pmb_recommends="breeze-gtk
 	postmarketos-artwork-wallpapers
 	qmlkonsole
 	spacebar
+	xdg-user-dirs
 	"
 install="$pkgname.post-install $pkgname.post-upgrade"
 source="kwinrc