As a user I also want to be able to access Sablier airdrops through the Sablier proposal template on the Builder UI.

[b3nedictvs]

Is your feature request related to a problem? Please describe.
With an increasing amount of ERC20 creates and DAO coins coming up, there is an anticipated need for safeguarded community rewards.

Describe the solution you'd like
Expose Sablier airdrop streams through the UI as done for Sablier streams.

Describe alternatives you've considered
Superfluid, no airdrop.

Additional context
#463