Appends versatile search links bar to linkbar
目前為
Sites to search can be added/changed/removed via script's local storage
Metanames supported in url expressions:
For release and request
${artist}
${artist_quoted}
${artists}
${artists_quoted}
${all_artists}
${all_artists_quoted}
${album_artist}
${album_artist_quoted}
${album}
${album_quoted}
${release_type}
${year}
For artist
${artist}
${artist_quoted}