[ImgBot] Optimize images

*Total -- 476.55kb -> 463.33kb (2.77%)

/apps/mac/web/rs-plugin/assets/loader2.gif -- 3.13kb -> 1.77kb (43.39%)
/apps/mac/web/rs-plugin/assets/loader.gif -- 2.49kb -> 1.97kb (20.79%)
/assets/images/image_2023-04-02_190824267.png -- 459.57kb -> 448.26kb (2.46%)
/assets/images/author.png -- 11.37kb -> 11.33kb (0.32%)

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

Author: ImgBotApp