Removes the SM healing factor from the stamina emitter diode disk (#4727)

## About The Pull Request
Title
## Why It's Good For The Game
0.25% healing is kind of insane, there's almost nothing you can do to an
SM that 4 emitters with this disk (in tier 1 research (very early game))
can't outheal. Removing the barrier to entry on mechanics is fine,
removing any danger or risk sucks.
## Proof Of Testing
it works dude trust me :)
<details>
<summary>Screenshots/Videos</summary>

</details>

## Changelog
🆑
balance: removed SM healing from diode disk
/🆑

modular_zubbers/code/modules/projectiles/beams.dm

@@ -0,0 +1,2 @@
+/obj/projectile/beam/emitter/hitscan/bluelens
+	integrity_heal = 0

tgstation.dme

@@ -9605,6 +9605,7 @@
 #include "modular_zubbers\code\modules\power\lighting\light_mapping_helpers.dm"
 #include "modular_zubbers\code\modules\power\supermatter\supermatter_delam.dm"
 #include "modular_zubbers\code\modules\power\supermatter\supermatter_gas.dm"
+#include "modular_zubbers\code\modules\projectiles\beams.dm"
 #include "modular_zubbers\code\modules\projectiles\ammunition\ballistic\rifle.dm"
 #include "modular_zubbers\code\modules\projectiles\ammunition\ballistic\smg.dm"
 #include "modular_zubbers\code\modules\projectiles\boxes_magazines\external\pistol.dm"