Update cz.m3u (Slager Channels)

Updated Šláger Channels:
- Šlágr 1 replaced by Šláger Originál
- Šlágr 2 replaced by Šláger Muzika
- Added Šláger Premium

streams/cz.m3u

@@ -32,10 +32,12 @@ https://media1.tvnatura.cz/live_out/1/live.m3u8
 https://stream.polar.cz/vctv/vctvlive-1/playlist.m3u8
 #EXTINF:-1 tvg-id="" status="timeout",Polar 2 TV (1080p)
 https://stream.polar.cz/polar2/polarlive2-1/playlist.m3u8
-#EXTINF:-1 tvg-id="" status="timeout",Šlágr 2 (576p)
-http://92.62.234.233/slagr2.m3u
-#EXTINF:-1 tvg-id="" status="timeout",Šlágr TV (576p)
+#EXTINF:-1 tvg-id="SlagerMuzika.cz" status="online",Šláger Muzika (576p)
+https://stream-33.mazana.tv/slagr2.m3u
+#EXTINF:-1 tvg-id="SlagerOriginal.cz" status="online",Šláger Originál (576p)
 https://stream-6.mazana.tv/slagr.m3u
+#EXTINF:-1 tvg-id="SlagerPremium.cz" status="online",Šláger Premium (1080p)
+https://stream-15.mazana.tv/slagrpremium.m3u
 #EXTINF:-1 tvg-id="" status="timeout",TV NOE
 https://n105.quickmedia.tv/noe-abr/noe-abr/playlist_dvr.m3u8
 #EXTINF:-1 tvg-id="" status="timeout",TV NOE+