Currently, the app urls are extremely long and unreadable, for example: https://stitch.mongodb.com/groups/5ab028594e6581148629dc65/apps/5b28f4615fdce07a74cd7f50/triggers/5bcf226fe707c05350750dcc

This looks pretty ugly. It would be a lot more user friendly to:

- eliminate the /groups/<groupID>/ portion of the URL entirely - the app ID already uniquely identifies the group anyway

- use the clientAppID instead of the raw objectID for /apps/<appID>.

For example, the above URL could instead be represented as

https://stitch.mongodb.com/apps/my-stitch-app-xyz/triggers/5bcf226fe707c05350750dcc

with no loss of functionality or precision