API: updated EditorExchangeOptionsBase and its inheritances
API.Base.SiteSettingsBase: updated 'Responser' creation algorithm
API.Base.UserDataBase: updated 'DownloadContentDefault_ConvertWebp_Impl' function
API.Instagram: added 'USE_GQL_Highlights' property; updated 'DocId' to get highlights and user info; remove 'ValidateExtension'; add 'DownloadContentDefault_ConvertWebp' to convert 'heic' files; fix highlights downloading; update getting username by ID
API.Reddit: fix missing posts downloading
API.ThisVid: fix a bug with updating/adding cookies
API.Twitter: fix post text is not downloaded completely
API.Xhamster: fix some posts are not downloaded
DownloadFeedForm: improve filters; add loading buttons 'Current', 'Favorite' and 'Load'
FeedMedia: fix an issue where post text would not load in older feeds
FeedFilter: add search by labels; fix saving filters when selecting users; fix an issue with the 'TEMP' filter
SiteEditorForm: get a cookies instance from the source
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