いろんなフォントで「cover_song」変換
Zen Old Minchocover_song
Yusei Magiccover_song
M PLUS 1cover_song
Shippori Antiquecover_song
Yuji Maicover_song
Dela Gothic Onecover_song
DotGothic16cover_song
Train Onecover_song
Hira Minchocover_song
Potta Onecover_song
Reggae Onecover_song
Stickcover_song
Zen Kurenaidocover_song
Kosugi Marucover_song
Rampart Onecover_song
Hachi Maru Popcover_song
New Tegomincover_song
RocknRoll Onecover_song
Kaisei Decolcover_song
「cover_song」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
