いろんなフォントで「button」変換
Zen Old Minchobutton
Yusei Magicbutton
M PLUS 1button
Shippori Antiquebutton
Yuji Maibutton
Dela Gothic Onebutton
DotGothic16button
Train Onebutton
Hira Minchobutton
Potta Onebutton
Reggae Onebutton
Stickbutton
Zen Kurenaidobutton
Kosugi Marubutton
Rampart Onebutton
Hachi Maru Popbutton
New Tegominbutton
RocknRoll Onebutton
Kaisei Decolbutton
「button」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
