Fixed self:TakePrimaryAmmo()

Changed the icon.

I rebalanced it and added a feature to ignite people.
Its damage is now 50 if you throw it directly at a person and the damage dealt by fire is around 30. The fire burns 6 seconds.
The timed_molotov (right click) has a larger explosion radius and damage because it's more difficult to place it secretly.

I tried to fix issues with the server's collection