いろんなフォントで「public_square」変換
Zen Old Minchopublic_square
Yusei Magicpublic_square
M PLUS 1public_square
Shippori Antiquepublic_square
Yuji Maipublic_square
Dela Gothic Onepublic_square
DotGothic16public_square
Train Onepublic_square
Hira Minchopublic_square
Potta Onepublic_square
Reggae Onepublic_square
Stickpublic_square
Zen Kurenaidopublic_square
Kosugi Marupublic_square
Rampart Onepublic_square
Hachi Maru Poppublic_square
New Tegominpublic_square
RocknRoll Onepublic_square
Kaisei Decolpublic_square
「public_square」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
