[ImgBot] Optimize images

*Total -- 7,499.71kb -> 5,417.61kb (27.76%)

/src/assets/img/joysound.png -- 31.21kb -> 11.41kb (63.45%)
/src/assets/img/rating-systems/dam/dx-g.png -- 690.99kb -> 446.61kb (35.37%)
/src/assets/img/rating-systems/joysound/master-1.png -- 1,175.73kb -> 783.88kb (33.33%)
/src/assets/img/rating-systems/joysound/master-2.png -- 647.92kb -> 442.53kb (31.7%)
/src/assets/img/rating-systems/dam/ai-heart.png -- 675.33kb -> 464.32kb (31.25%)
/src/assets/img/icon.png -- 1,529.44kb -> 1,101.17kb (28%)
/src/assets/img/rating-systems/dam/ai.png -- 529.10kb -> 394.85kb (25.37%)
/src/assets/img/rating-systems/joysound/ai.png -- 691.16kb -> 518.74kb (24.95%)
/src/assets/img/mikan-mic-piece.png -- 1,145.92kb -> 908.62kb (20.71%)
/src/assets/img/mikan-vt.png -- 382.90kb -> 345.47kb (9.78%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: ImgBotApp