ncmpcpp: Hide unnecessary library info

Hide the years that ncpmpcpp always adds to the library albums, and
don't split them by date. Also importantly use 'album_artist' to
sort the corresponding artists instead of just 'artist' since beets
will often sort the individual acting artist for the latter, pulling
apart single songs from larger albums.
Lastly, add a 'data_fetching_delay' (of I believe 250ms) when quickly
scrolling through the artist/album list so it goes a little smoother
when loading data from remote sources.

multimedia/.config/ncmpcpp/config

@@ -46,6 +46,11 @@ song_status_format = "$5$b%t $5$/b• $3%a $5• $6%b {(Disc %d) }$5• $4%y"
 song_library_format = "{{%a - %t}|{%f}}{$R%l}"
 empty_tag_marker = ""
 empty_tag_color = "9"
+media_library_primary_tag = "album_artist"
+media_library_sort_by_mtime = "no"
+media_library_hide_album_dates = "yes"
+media_library_albums_split_by_date = "no"
+data_fetching_delay = "yes"
 
 [global]
 user_interface = "alternative" #(classic/alternative)