V0.8.0

Added

• Added driver salary to roster
• Email button in sidebar now indicates new email(s) received
• Added best result and round column to constructor standings to determine tie breakers

Changed

• Season_stats now saved
• Begun to improve home page

Fixed

• Standings now load correctly from save_file

Refactored

• Improved financial page layout
• Session types in the race_model now use enums