Remove unsupported modifiers from AG for Safari filter lists

[superlex]

Examples of unsupported modifiers according to https://adguard.com/kb/general/ad-filtering/create-own-filters/ but present in AG for Safari filter lists:

||adtclickwhite.com^$all

@@||findernet.com^$content

found in https://filters.adtidy.org/extension/safari/filters/2.txt

[slavaleleka]

$all is actually supported by Adguard for Safari and Adguard for iOS so Knowledge Base should be updated

[superlex]

Oh ok, thanks @slavaleleka 😊