Allow Manual Import of Offline/Affiliate Sales Data

As a Plausible user, I need a way to import sales data that can’t be tracked in real-time through your standard tracking. For example, we receive affiliate sales data from our partners after the sales occur, but currently have no way to add these to our Plausible analytics.

A simple feature to manually add sales data with their corresponding timestamps would help us maintain accurate revenue tracking across all our sales channels in one place.