Version 0.2.0

Version 0.2.0  

Bugfixes : 

- Update energy when deleting building
- When reloading, machines unlocked stay unlocked
- Erasing the save is now correctly working
- Unlocking tiers in a random order can't softlock anymore
- Idea icon correctly displayed

QOL : 

- New buttons on top bar for every actions
- Change color of machines range when building
- Select tiers of machines in the menu
- Deleting a machine gives back the cost (no more soft-locking)
- Destruction mode : delete multiple machines quickly
- You can now select a machine during its construction

Misc : 

- Machines are top-oriented when opening building menu
- Import / Export of the save
- Help menu is not displayed on the start if a save exists
- Refactorisation of HTML refs recuperation for the managers