RFE: Need to set proper filename in Subscription Export CSV response
When a user downloads a CSV of an org's subscriptions, the filename is in the format of "subscriptions-YYYY-MM-DD.csv".
If user is downloading CSVs for multiple orgs, that can get confusing.
Steps to Reproduce:
1. Create multiple orgs and upload manifests for each.
2. Go to subscriptions page for org 1; click the "Export CSV" button.
3. Repeat step #2 for as many orgs as you have created and uploaded manifests.
The filename is the same for each org (although your browser probably tweaks the filename since it thinks you are re-downloading something).