luci-app-qbittorrent: adapt to openwrt snapshot

Signed-off-by: sbwml <admin@cooluc.com>

luci-app-qbittorrent/root/etc/uci-defaults/qbittorrent

@@ -1,11 +1,13 @@
 #!/bin/sh
 
+[ -f "/etc/config/ucitrack" ] && {
 uci -q batch <<-EOF >/dev/null
 	delete ucitrack.@qbittorrent[-1]
 	add ucitrack qbittorrent
 	set ucitrack.@qbittorrent[-1].init=qbittorrent
 	commit ucitrack
 EOF
+}
 
 rm -f /tmp/luci-indexcache*
 exit 0

luci-app-qbittorrent/root/usr/share/ucitrack/luci-app-qbittorrent.json

@@ -0,0 +1,4 @@
+{
+	"config": "qbittorrent",
+	"init": "qbittorrent"
+}