Feature summary:
We need to prevent the display of depict suggestions that are already present on the image.
This is needed because the suggestion may still have status "unreviewed" (e.g. if the edit was made directly on Commons)

The easiest way is to set isAccepted=true on any suggestion that is already included within the initalData.depicts array (i.e. they have a matching Wikidata item).
This should be done in both the populateMachineVisionSuggestions and the populateM2CSuggestions functions just before we call this.appendSuggestions (this is when they are "saved" to main this.depictSuggestions array).