[ImgBot] Optimize images

*Total -- 387.93kb -> 255.57kb (34.12%)

/assets/img/phishnet/request_process_thread.png -- 84.35kb -> 24.78kb (70.62%)
/assets/img/phishnet/request_creation.png -- 17.96kb -> 5.41kb (69.85%)
/assets/img/phishnet/celery_loop_flow.png -- 43.38kb -> 14.55kb (66.45%)
/assets/img/partners/cnxcertifyme.jpg -- 64.39kb -> 44.55kb (30.82%)
/assets/img/phishnet/without_url_repeatedDigitsInURL_repeatedDigitsInSubdomain_cse_confusion_matrix.png -- 24.35kb -> 20.00kb (17.86%)
/assets/img/phishnet/without_repeatedDigitsInURL_repeatedDigitsInSubdomain_cse_confusion_matrix.png -- 24.14kb -> 20.97kb (13.1%)
/assets/img/prash.jpeg -- 45.78kb -> 43.91kb (4.08%)
/assets/img/logo_zoho.svg -- 4.97kb -> 4.79kb (3.69%)
/assets/img/prof_pic.jpg -- 78.62kb -> 76.61kb (2.56%)

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

Author: ImgBotApp