いろんなフォントで「double+salt」変換
Zen Old Minchodouble+salt
Yusei Magicdouble+salt
M PLUS 1double+salt
Shippori Antiquedouble+salt
Yuji Maidouble+salt
Dela Gothic Onedouble+salt
DotGothic16double+salt
Train Onedouble+salt
Hira Minchodouble+salt
Potta Onedouble+salt
Reggae Onedouble+salt
Stickdouble+salt
Zen Kurenaidodouble+salt
Kosugi Marudouble+salt
Rampart Onedouble+salt
Hachi Maru Popdouble+salt
New Tegomindouble+salt
RocknRoll Onedouble+salt
Kaisei Decoldouble+salt
「double+salt」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
