Patching up medical kit code

- Removed spaghetti code that prevented people from patching up dead bodies. That's extremely unwieldy for defibrillating and also broke internal organ surgery when the patient is dead. More likely a relic
from the times where medical kits simply healed damage and could be mass-spammed
- All messages to span
- Removing useless whitespaces and formatting messages correctly
- Some small tweaks to healing messages
- Damage healed by adv. kits is now rand(10, 10 + 5) instead of 12
- Removed the random 1 burn damage healed by ointments
- Reduced healing provided by the snowflake tajaran kits to 5. Good luck obtaining them anyhow

The main goal is fixing old deciduous Medical code to get closer to the Grall of finally unfucking damage code. Nothing too complicated for now