More intuitive filtered download

[JenniferBorlick]

Currently to download a subset of data based on location, the user needs to turn on the "filter as map moves" in the filtering pane and then Toggle Filters in the download view.

It is not clearly defined how to use the downloads to new or infrequent users. While I have created instructions and a gif on my Open Data Hub, it would be nice if these steps were more intuitive. I would suggest:

• Renaming "Toggle filters" to "Download filtered data"
• Have "Download filtered data" be on by default when a filter is triggered
• Adding text to the download pane that says, "To download a subset of data, use the Filter Tool  first." 

Thanks.