Updated DB to use refresh tokens, added migration

dotnet/AipsCore/Infrastructure/Persistence/Db/AipsDbContext.cs

@@ -1,4 +1,5 @@
-using Microsoft.AspNetCore.Identity;
+using AipsCore.Infrastructure.Persistence.Authentication.RefreshToken;
+using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore;
 
@@ -6,6 +7,8 @@ namespace AipsCore.Infrastructure.Persistence.Db;
 
 public class AipsDbContext : IdentityDbContext<User.User, IdentityRole<Guid>, Guid>
 {
+    public DbSet<RefreshToken> RefreshTokens { get; set; }
+    
     public DbSet<Whiteboard.Whiteboard> Whiteboards { get; set; }
     public DbSet<Shape.Shape> Shapes { get; set; }
     public DbSet<WhiteboardMembership.WhiteboardMembership> WhiteboardMemberships { get; set; }