いろんなフォントで「string_quartet」変換
Zen Old Minchostring_quartet
Yusei Magicstring_quartet
M PLUS 1string_quartet
Shippori Antiquestring_quartet
Yuji Maistring_quartet
Dela Gothic Onestring_quartet
DotGothic16string_quartet
Train Onestring_quartet
Hira Minchostring_quartet
Potta Onestring_quartet
Reggae Onestring_quartet
Stickstring_quartet
Zen Kurenaidostring_quartet
Kosugi Marustring_quartet
Rampart Onestring_quartet
Hachi Maru Popstring_quartet
New Tegominstring_quartet
RocknRoll Onestring_quartet
Kaisei Decolstring_quartet
「string_quartet」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
