BillionGraves has issue with URL

```
Error handling response: TypeError: imageUrl.replace is not a function
    at Object.parseBillionGraves [as parseProfileData] (chrome-extension://emmollagagippcikalejdcginaggfmaj/collections/billiongraves.js:123:41)
    at chrome-extension://emmollagagippcikalejdcginaggfmaj/popup.js:548:32
```