bugfix and keys

bugfix: playing failed with tracks of unknown length
keys: added yank keys

src/main.sh

@@ -638,6 +638,8 @@ open \"https://musicbrainz.org/\$t/{r3}\"" \
         --bind="$KEYS_OPEN:execute-silent:
 [ {4} ] || exit 0
 open \"\$(dirname {4})\"" \
+        --bind="$KEYS_N_YANK:transform:$IN_NORMAL_MODE && echo \"execute-silent(printf {3} | $CLIP)\" || $PUT_FZF_KEY_LOGIC" \
+        --bind="$KEYS_YANK_CURRENT:execute-silent:printf {2} | $CLIP" \
         --bind="$KEYS_SHOW_PLAYLIST:transform:echo \"print($VIEW_PLAYLIST)+print()+print($FZF_CURRENT_VIEW)+print({2})+accept\"" \
         --bind="$KEYS_QUIT:print($VIEW_QUIT)+accept" \
         --bind="$KEYS_N_QUIT:transform:$IN_NORMAL_MODE && ($IN_LIST_ARTISTS_VIEW && echo \"print($VIEW_QUIT)+accept\" || $0 --action-draw $MODE_NORMAL $VIEW_LIST_ARTISTS) || $PUT_FZF_KEY_LOGIC" \