Added initializer for dev environment for the new dbContexts

src/Web/Program.cs

@@ -109,6 +109,8 @@ app.UseAuthorization();
 
 // Initialize and seed the db.
 await app.InitialiseApplicationDatabaseAsync();
+await app.InitialiseContentDbContextAsync();
+await app.InitialiseMessagingDbContextAsync();
 await app.SeedDatabaseWithTestDataOnlyIfNoDataIsPresentAsync();
 
 // Configure the HTTP request pipeline.