fix:avoid duplicate results

docs: add download keyword to title

docs: optimize search result of download

refact: adjust head file and sync log

fix(query): set offset for empty record

fix: import image before using in md/mdx file

enh: optimize the error message when illegally modifying the column length

refactor(tmq): add more strict drop condition check

refact: adjust sync debug codes

fix: add html close tag for compile

test: add case for tmq in replica3

docs: add WeChat QR code of xiao-t

fix: the problem of null in case when expression

* feat: taosbenchmark support query fails then continue

* fix: taosbenchmark version for windows

chore: set stream fill history on for tsma

fix: update stb stats cache when creating/dropping child tables