[ImgBot] Optimize images

*Total -- 13,729.82kb -> 8,129.38kb (40.79%)

/img/photos/froscon_2025_social_event.jpg -- 4,045.97kb -> 1,231.13kb (69.57%)
/img/photos/froscon_2025_android_auto.jpg -- 3,390.90kb -> 1,193.06kb (64.82%)
/img/photos/froscon_2025_donut.jpg -- 70.82kb -> 46.16kb (34.83%)
/img/photos/froscon_2025_stand_2.jpg -- 1,546.94kb -> 1,236.81kb (20.05%)
/img/android-bot.png -- 58.60kb -> 51.69kb (11.78%)
/img/photos/froscon_2025_stand.jpg -- 1,910.33kb -> 1,704.67kb (10.77%)
/img/altered-deal.png -- 371.50kb -> 336.21kb (9.5%)
/img/screenshots/mute_main.jpg -- 17.03kb -> 16.88kb (0.88%)
/img/guardian-consent-screenshot.jpg -- 82.02kb -> 81.38kb (0.79%)
/img/screenshots/mute_back.jpg -- 34.15kb -> 33.99kb (0.47%)
/img/0.18_hotfixes.jpg -- 57.66kb -> 57.42kb (0.42%)
/img/screenshots/kodi_player_button.jpg -- 53.19kb -> 53.02kb (0.32%)
/img/bg_tiles.jpg -- 201.14kb -> 200.52kb (0.31%)
/img/talkshot.jpg -- 5.88kb -> 5.86kb (0.27%)
/img/faq.jpg -- 18.51kb -> 18.46kb (0.26%)
/img/merch_2025.jpg -- 1,664.24kb -> 1,661.29kb (0.18%)
/img/screenshots/thumbnail_scaling.jpg -- 32.46kb -> 32.42kb (0.11%)
/img/privacy_written_in_tiles.jpg -- 39.44kb -> 39.41kb (0.07%)
/img/screenshots/dex_after.jpg -- 36.67kb -> 36.65kb (0.06%)
/img/happy-voss.jpg -- 61.86kb -> 61.83kb (0.05%)
/img/screenshots/dex_before.jpg -- 30.52kb -> 30.52kb (0%)

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

Author: ImgBotApp