Follow-up from "Refactor and fix ChatBox layouting"

The following discussion from !1347 (merged) should be addressed:

• @nvrwhere started a discussion: (+1 comment)

  When I hit reply on one of my own messages the console gets pinged with qrc:/org/kde/neochat/qml/MessageEditComponent.qml:158: TypeError: Cannot read property 'isEditing' of undefined.

  This is probably not related to this patch but to the way hover actions always clears the editchahce ID. Feel free to separate this out into it's own issue but we should track.