Add Team functions

Data/Migrations/AppDbContextModelSnapshot.cs

@@ -161,9 +161,8 @@ namespace Data.Migrations
                     b.Property<int>("EventId")
                         .HasColumnType("INTEGER");
 
-                    b.Property<string>("Name")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
+                    b.Property<int?>("Number")
+                        .HasColumnType("INTEGER");
 
                     b.Property<string>("TeamId")
                         .HasColumnType("TEXT");
@@ -174,7 +173,7 @@ namespace Data.Migrations
 
                     b.HasIndex("EventId");
 
-                    b.ToTable("Teams");
+                    b.ToTable("TimeSlots");
                 });
 
             modelBuilder.Entity("StudentTeam", b =>