[Compatibility/Google Sheets]: Extension to recognize GS

[tplowe56]

Extension Request

Google sheets URL's provided for publishing a chart/image is not in a standard image format, so SLB does not detect it as an image to be displayed in a lightbox.

The chart/image is displayed properly but has no navigation controls, so the user has to use the back button on pc/mobile to exit the image.

Example: https://www.loweprofile.com/investing101/performance/