[ImgBot] optimizes images

*Total -- 11,094.86kb -> 10,327.87kb (6.91%)

/viewer/Imagen-no-disponible.png -- 7.50kb -> 2.20kb (70.68%)
/images/Previous_Arrow.png -- 0.70kb -> 0.56kb (20.58%)
/images/Next_Arrow.png -- 0.67kb -> 0.55kb (17.96%)
/images/Zoom_out.png -- 0.83kb -> 0.72kb (13.22%)
/images/Zoom_in.png -- 0.85kb -> 0.74kb (13.12%)
/Project_example/images/2.jpg -- 625.76kb -> 546.50kb (12.67%)
/viewer/image.jpg -- 5,518.75kb -> 5,107.66kb (7.45%)
/Project_example/images/3.png -- 2,137.61kb -> 1,980.31kb (7.36%)
/Project_example/images/0.jpg -- 429.09kb -> 406.82kb (5.19%)
/Project_example/images/1.jpg -- 2,373.10kb -> 2,281.82kb (3.85%)

Author: ImgBotApp