Fix:
- Fixed a bug where the price of 2 trucks for the convoy was 100 instead of 1000.

- Fix a condition in the custom button of the Command Center where clicking on an option could stop the automatic departure of convoys.

Fix:
- Remove the condition to show the security of politicians later in the game. You are now able to see it all the time. The tutorial explaining how it's working remains.

- Improving the automatic departure of convoys

Fix :
- Had a report that the "Increasing security" button was not showing up even after being notified by a politician. I added a few scripts to ensure this is will not happen again, hopefully.

Feature updated : Convoys

Convoys are now sent automatically. You have a range of 6 hours to change the type of supplies you want to import. Only notifications are displayed with sound to alert you in order to give you a more fluent gameplay.

Also, convoys have been nerfed due to the insane snowball it could give you.

Added : You are now limited to 10 vehicles.

Vehicles prices :
1 vehicle : From 200 gold, 20 wood, 50 iron, 1 worker to 600 gold, 40 wood, iron, workers and time construction unchanged.
2 vehicles : From 380 gold, 35 wood, 75 iron 2 workers to 1k gold, 70 wood, 90 iron, workers and time construction unchanged.
5 vehicles : From 750 gold, 80 wood, 175 iron, 5 workers to 2,5k gold, 150 wood, 200 iron, workers and time construction unchanged.

Loading capacity (for one vehicle):
Gold : unchanged
Wood : from 40 to 25
Stone : from 25 to 15
Iron : from 15 to 8 iron
Food : unchanged

- Added a small sentence to drive the players to know where to go.

- Fix a bug where a politician could give you a choice even if you didn't elect him.

- Fixing an issue where at day 40, you were not able to switch the alarm system of random waves on difficult/hardcore.