[ImgBot] Optimize images

*Total -- 1,924.68kb -> 1,377.48kb (28.43%)

/images/chart-preview.png -- 193.84kb -> 122.03kb (37.05%)
/_fastpages_docs/upgrade_step3.png -- 155.15kb -> 100.40kb (35.29%)
/_fastpages_docs/upgrade_step2.png -- 178.45kb -> 117.73kb (34.02%)
/_fastpages_docs/highlight_dracula.png -- 72.29kb -> 47.75kb (33.96%)
/images/fastpages_posts/actions/pr_1.png -- 358.59kb -> 239.05kb (33.34%)
/images/fastpages_posts/actions/pr_2.png -- 243.34kb -> 162.41kb (33.26%)
/_fastpages_docs/highlight_original.png -- 64.83kb -> 44.40kb (31.52%)
/_fastpages_docs/upgrade_step1.png -- 33.53kb -> 23.86kb (28.83%)
/_fastpages_docs/_show_image_true.png -- 80.93kb -> 60.00kb (25.86%)
/_fastpages_docs/enable_actions.png -- 41.12kb -> 31.08kb (24.41%)
/images/logo.png -- 6.96kb -> 5.31kb (23.71%)
/_notebooks/my_icons/fastai_logo.png -- 6.96kb -> 5.31kb (23.71%)
/_notebooks/fastcore_imgs/td.png -- 145.21kb -> 113.91kb (21.55%)
/images/fastpages_posts/codespaces/codespaces.png -- 46.26kb -> 37.80kb (18.28%)
/_notebooks/fastlinkcheck_images/fastlinkcheck.png -- 53.80kb -> 44.56kb (17.17%)
/_notebooks/ghtop_images/token.png -- 52.16kb -> 43.41kb (16.78%)
/images/fastpages_posts/actions/actions_logo.png -- 17.08kb -> 14.53kb (14.91%)
/_fastpages_docs/_checkbox.png -- 20.65kb -> 17.81kb (13.76%)
/_fastpages_docs/_post_tags.png -- 20.79kb -> 18.54kb (10.86%)
/_fastpages_docs/annotate.png -- 25.73kb -> 23.24kb (9.68%)
/_notebooks/ghtop_images/sparknb.gif -- 41.53kb -> 39.97kb (3.76%)
/assets/badges/colab.svg -- 2.31kb -> 2.23kb (3.63%)
/_notebooks/fastcore_imgs/bwtm.jpg -- 16.32kb -> 15.74kb (3.56%)
/images/diagram.png -- 41.58kb -> 41.15kb (1.03%)
/assets/badges/github.svg -- 1.96kb -> 1.96kb (0.1%)
/assets/badges/binder.svg -- 3.30kb -> 3.30kb (0.06%)

Signed-off-by: ImgBotApp <[email protected]>

Author: ImgBotApp