Create Media Playback issue template (#1451)

Added media playback issue template. We might want to add some more information requests in there.

.github/ISSUE_TEMPLATE/media_playback.md

@@ -0,0 +1,32 @@
+---
+name: Media playback issue
+about: Create a media playback issue report
+title: ''
+labels: mediaplayback
+assignees: ''
+
+---
+
+**Media Info of the file**
+<!-- Use the Media Info tool (set to text format, download here: https://mediaarea.net/en/MediaInfo) or copy the info from the web ui for the file with the playback issue. -->
+
+**Logs**
+<!-- Please paste any log message from during the playback issue, for example the ffmpeg command line can be very useful. -->
+
+**Stats for Nerds Screenshots**
+<!-- If available, add screenshots of the stats for nerds screen to help show the issue problem. -->
+
+**Server System (please complete the following information):**
+ - OS: [e.g. Docker on Linux, Docker on Windows, Debian, Windows]
+ - Jellyfin Version: [e.g. 10.0.1]
+ - Hardware settings & device: [e.g. NVENC on GTX1060, VAAPI on Intel i7 8700K]
+ - Reverse proxy: [e.g. no, nginx, apache, etc.]
+ - Other hardware notes: [e.g. Media mounted in CIFS/SMB share, Media mounted from Google Drive]
+ 
+**Client System (please complete the following information):**
+ - Device: [e.g. Apple iPhone XS, Xbox One S, LG OLED55C8, Samsung Galaxy Note9, Custom HTPC]
+ - OS: [e.g. iOS, Android, Windows, macOS]
+ - Client: [e.g. Web/Browser, webOS, Android, Android TV, Electron]
+ - Browser (if Web client): [e.g. Firefox, Chrome, Safari]
+ - Client and Browser Version: [e.g. 10.3.4 and 68.0]
+