private static async Task SeedCompanyAsync(ApplicationDbContext context)
{
var data = await InitializeData.BuildCompanyList();
var dbData = context.Companies.ToList();
var diffData = data.Where(c => dbData.All(e => e.Name != c.Name)).ToList();
await context.Companies.AddRangeAsync(diffData).ConfigureAwait(false);
await context.SaveChangesAsync().ConfigureAwait(false);
}
