Wraps lowertext() to ensure proper stringification. (#82442)

## About The Pull Request

Fixes #82440

This PR just creates a new macro, `LOWER_TEXT()` (yes the irony is not
lost on me) to wrap around all calls of `lowertext()` and ensure that
whatever we input into that proc will be stringified using the `"[]"`
(or `tostring()` for the nerds) operator. very simple.

I also added a linter to enforce this (and prevent all forms of
regression) because I think that machines should do the menial work and
we shouldn't expect maintainers to remember this, let me know if you
disagree. if there is a time when it should be opted out for some
reason, the linter does respect it if you wrap your input with the
`UNLINT()` function.

code/modules/wiremod/shell/module.dm

@@ -106,7 +106,7 @@
 	action_comp.granted_to[REF(user)] = src
 	circuit_component = action_comp
 	name = action_comp.button_name.value
-	button_icon_state = "bci_[replacetextEx(lowertext(action_comp.icon_options.value), " ", "_")]"
+	button_icon_state = "bci_[replacetextEx(LOWER_TEXT(action_comp.icon_options.value), " ", "_")]"
 
 /datum/action/item_action/mod/pinnable/circuit/Destroy()
 	circuit_component.granted_to -= REF(pinner)