[ImgBot] Optimize images

*Total -- 2,122.07kb -> 1,776.99kb (16.26%)

/public/assets/img/output-onlinegiftools.gif -- 57.21kb -> 6.96kb (87.83%)
/public/assets/img/additional_settings_canvas.png -- 35.59kb -> 19.26kb (45.89%)
/public/assets/img/learning_trees/tree-branches-and-root-01r.svg -- 12.24kb -> 6.87kb (43.84%)
/public/assets/img/372103860_CHECK_MARK_400.gif -- 5.33kb -> 3.64kb (31.65%)
/public/assets/img/check_twice.gif -- 5.37kb -> 3.68kb (31.41%)
/public/assets/img/391906020_THUMBS_UP_400px.gif -- 723.30kb -> 600.41kb (16.99%)
/public/assets/img/thumbs_up_twice.gif -- 723.26kb -> 600.45kb (16.98%)
/public/assets/img/learning_trees/green_light.jpg -- 12.33kb -> 10.89kb (11.64%)
/public/assets/img/learning_trees/red_light.jpg -- 12.32kb -> 10.97kb (11.02%)
/public/assets/img/learning_trees/yellow_light.jpg -- 12.61kb -> 11.35kb (10.02%)
/public/assets/img/splash.jpg -- 87.10kb -> 79.00kb (9.3%)
/public/assets/img/learning_trees/shutterstock_145255864.svg -- 137.47kb -> 130.39kb (5.15%)
/public/assets/img/learning_trees/shutterstock_1139962724.svg -- 129.25kb -> 125.64kb (2.8%)
/public/assets/img/learning_trees/branches.svg -- 168.70kb -> 167.49kb (0.71%)

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

Author: ImgBotApp