Convert Antifire potion to Timer and Fix Relicym Balm

What has been done in this MR?

• Added new timer - DragonFire Immunity
• Changed Relicym Balm(Potion and Mix) to partially cure Disease
• Changed Antifire Potion to apply timers rather then attributes
• Updated Dragonfire check to look for the timer rather then the attribute
• Bonus effect, Antifire potion effect persists through log out.

What should testers check?

• All effects are correctly protected against/cured
• All effects wear off correctly

• I have tested these changes thoroughly.
• I used the relevant Zaros tool for any JSON edits where possible, and have attached screenshots of any changes.