Issue description
Continue button on main menu will show last save file even if all files are deleted, and clicking it will cause an unhandled File not found exception.
---> FileNotFoundException: Could not find file 'C:\Users\username\Documents\Captain of Industry\Saves\22-08-27_15-06-autosave.save'.
at System.IO.FileInfo.get_Length () [0x0001d]
at (wrapper remoting-invoke-with-check) System.IO.FileInfo.get_Length()
at Mafi.Unity.GamePlayScene+<loadGame>d__14.MoveNext () [0x000bc]
at Mafi.Unity.GamePlayScene+<Initialize>d__12.MoveNext () [0x000a5]
at Mafi.Unity.Main.Update () ```
### Expected behavior
Continue Button should be updated when returning from Load screen to reflect the potential change that was made with save file it was referencing to
### Reproduction steps
Delete all the save files, go back to menu and click Continue
### Game version
v0.4.10
### Attachments
22-08-27\_12-52-10\_6356.log
