Refactor: refactor security levels (#21899)

* refactor: datumize security levels

* refactor: implement `SSsecurity_level` for handling security level related stuff

* feat: returns back old `delta_alarm` sound

* refactor: adjust existing code to use `SSsecurity_level`

* fix: remove redundunt new init order

* fix: fix type in var

* refactor: apply reviewer changes

* fix: replace `can_fire=FALSE` with `ss_flags = SS_NO_FIRE`, as subsystem will never fire

* fix: use `flags` instead of `ss_flags` for subsystem

Co-authored-by: SteelSlayer <42044220+SteelSlayer@users.noreply.github.com>

* fix: replace old security level interactions

* feat: implement `Recover` proc for `SSsecurity_level`

* refactor: add clearer doc for `security_level_set_timer_id`  propery of `SSsecurirt_level`

* refactor: swap `security_level` datum properties to make it clearer to read

* refactor: move initialization code from `New` to `Initialize` for `/obj/machinery/firealarm`

* fix: revert back `delta_alarm` annoing sound, use `delta_claxon` on change to delta security level

---------

Co-authored-by: SteelSlayer <42044220+SteelSlayer@users.noreply.github.com>

code/modules/world_topic/status.dm

@@ -47,7 +47,7 @@
 	if(key_valid)
 		if(SSticker.mode)
 			status_info["real_mode"] = SSticker.mode.name
-			status_info["security_level"] = get_security_level()
+			status_info["security_level"] = SSsecurity_level.get_current_level_as_text()
 			status_info["ticker_state"] = SSticker.current_state
 
 		if(SSshuttle.emergency)