Update "Send Treasury Report by email" button to only kick-off email sending lambda through an SQS queue

[as1729]

Current State

• When "Send Treasury Report By Email" button is clicked, the entire treasury-generation step function is kicked off.

Expected State

• When "Send Treasury Report By Email" button is clicked, only the Send email lambda is kicked-off via an SQS queue

[nowei]

Should there be a new button to kick off the original workflow? O/w how do we expect people to kick off the treasury report generation?

[nowei]

Or is that being handled by another ticket?