[MIRROR] Lowers thermic constant of Cryostylane reaction (#1192)

* Lowers thermic constant of Cryostylane reaction (#81709)

## About The Pull Request
- Fixes #81687

Thermic constant of Cryostylane reaction now reduced from -7.5 to -1.5.

Meaning for every 1u of Cryostylane created the overall temperature of
the holder reduces by 1.5k so for e.g. if you create 30u of cryostylane
without any heating the temps reduces by 30 * 1.5 = 45k(the drop of
temperature increases as the reaction temps grows closer to optimal
temperature in our case -200k)

When testing upon adding 30u of water, nitrogen & stable plasma and
cooling the mixture to 270k via tier1 chem heater you acheive 30u of
Cryostylane at 82% purity and the final temps are 180k

P.S. adjusted range of chem debuger to include negative values. Helped
me in debugging this

## Changelog
:cl:
fix: Cryostylane reaction now has a moderate & not extreme cooling
effect. Helps you achieve more pure amounts of Cryostylane
/:cl:

* Lowers thermic constant of Cryostylane reaction

---------

Co-authored-by: SyncIt21 <[email protected]>

code/modules/reagents/chemistry/recipes/pyrotechnics.dm

@@ -419,7 +419,7 @@
 	determin_ph_range = 6
 	temp_exponent_factor = 0.5
 	ph_exponent_factor = 1
-	thermic_constant = -7.5
+	thermic_constant = -1.5
 	H_ion_release = 0
 	rate_up_lim = 10
 	purity_min = 0.2

tgui/packages/tgui/interfaces/ChemRecipeDebug.tsx

@@ -368,7 +368,7 @@ export const ChemRecipeDebug = (props) => {
                         step={0.1}
                         stepPixelSize={3}
                         value={editReaction?.editValue || 0}
-                        minValue={0}
+                        minValue={-1000}
                         maxValue={1000}
                         disabled={editReaction === null}
                         onDrag={(e, value) =>