Revised the dependency order in the project structure.
The `Surge365.MassEmailReact.API` now depends on both
`Application` and `Infrastructure`. Removed the reference
to `Infrastructure` in `Surge365.MassEmailReact.Application.csproj`.
Updated `Surge365.MassEmailReact.Infrastructure.csproj` to
include references to both `Application` and `Domain`.
Modified `Surge365.MassEmailReact.API.csproj` to include
a reference to `Surge365.MassEmailReact.Infrastructure`.