Liked Documents with dots in the file name / title produce give unintelligible messages when user profile is shown

If the document name contains one or more dots (".") and the document is "liked", the user will get a unintelligible message when the user profile is opened:

(German version: "Das Aktualiseren der Einträge ist aus einem unbekannten Grund fehlgeschlagen")

Sorry - this is the same as XWIKI-19900

I think the problem is caused by json.serialize in line 93 of XWiki.Like.Code.LiveTableResultPage as "\." within a string generates a line feed when used. (see attachments)