main/postmarketos-base-ui-plasma: add snapshot to pmb_recommends (MR 5644)

Bart says this is OK, see: https://gitlab.com/postmarketOS/pmaports/-/merge_requests/5511#note_2060556873

main/postmarketos-base-ui-plasma/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Bart Ribbers <bribbers@disroot.org>
 pkgname=postmarketos-base-ui-plasma
 pkgver=2
-pkgrel=9
+pkgrel=10
 pkgdesc="Meta package for shared configuration for Plasma-based UIs"
 url="https://postmarketos.org"
 arch="noarch !armhf" # armhf is not supported
@@ -35,6 +35,7 @@ _pmb_recommends="
 	kde-gtk-config
 	maliit-keyboard
 	postmarketos-artwork-wallpapers
+	snapshot
 	xdg-user-dirs
 	"
 subpackages="$pkgname-openrc"