fix(webchat): last heard on not updated correctly (#4448)
fix(webchat): last heard on not updated correctly (#4448)

Co-authored-by: Francois-Xavier P. Darveau <f6d2c4677d034c3f9aacb1bb1221e97417ec9e73@users.noreply.github.com>
botpress/botpress,botpress/botpress,botpress/botpress,botpress/botpress