chore: minor jellyfin updates (#300)

- add jellyfin to video group, for access to gpu
- install intel related gpu drivers
- export lxc jellyfin to haproxy

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/300

site/profiles/templates/jellyfin/override.conf.erb

@@ -4,5 +4,5 @@
 
 [Service]
 #User = jellyfin
-EnvironmentFile = <%= @environment_file %>
+EnvironmentFile = <%= @sysconfig_file %>
 WorkingDirectory = <%= @lib_dir %>

site/profiles/templates/jellyfin/sysconfig.erb

@@ -21,10 +21,10 @@ JELLYFIN_LOG_DIR="<%= @log_dir %>"
 JELLYFIN_CACHE_DIR="<%= @cache_dir %>"
 
 # web client path, installed by the jellyfin-web package
-JELLYFIN_WEB_OPT="--webdir=/usr/share/jellyfin-web"
+JELLYFIN_WEB_OPT="--webdir=<%= @jellyfin_web %>"
 
 # [OPTIONAL] ffmpeg binary paths, overriding the UI-configured values
-JELLYFIN_FFMPEG_OPT="--ffmpeg=<% @ffmpeg_path %>"
+JELLYFIN_FFMPEG_OPT="--ffmpeg=<%= @ffmpeg_path %>"
 
 # [OPTIONAL] run Jellyfin as a headless service
 #JELLYFIN_SERVICE_OPT="--service"