feat: add preserve_classes/preserve_tags whitelist to PruningContentFilter (#1900)#1904

hafezparast wants to merge 1 commit intounclecode:developunclecode/crawl4ai:developfrom

hafezparast:fix/maysam-pruning-preserve-whitelist-1900hafezparast/crawl4ai:fix/maysam-pruning-preserve-whitelist-1900Copy head branch name to clipboard