Revert "Update and rename Fiora.cs to Program.cs"

This reverts commit cc7653f148c9674d7bfdb38d420f619aca3eb8f9.
Revert "Revert "Update and rename Fiora.cs to Program.cs""

This reverts commit 732bc9104b17d2a91ca0e8a841f3bcfe8abbe0a1.