Refactoring

The main server owns the migrations, it's the server part,
it's simpler.

It's Yavsc, not one of its lib.

src/Yavsc.Server/Models/ApplicationDbContext.cs

@@ -36,6 +36,10 @@ namespace Yavsc.Models
 
     public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
     {
+        public ApplicationDbContext()
+        {
+
+        }
         public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
         {
         }