public async ValueTask Delete(MangasContext context, int accountId)
{
var bookmark = await context.Bookmarks.FirstAsync(b => b.Id == BookmarkId && b.AccountId == accountId);
context.Remove(bookmark);
}
public async ValueTask DeleteById(MangasContext context)
{
var bookmark = await context.Bookmarks.FirstAsync(b => b.Id == BookmarkId);
context.Remove(bookmark);
}