Fix missing modular computer header in guntracker (#9972)

Co-authored-by: Werner <Arrow768@users.noreply.github.com>

code/modules/modular_computers/file_system/programs/security/guntracker.dm

@@ -14,13 +14,13 @@
 /datum/computer_file/program/guntracker/ui_interact(var/mob/user)
 	var/datum/vueui/ui = SSvueui.get_open_ui(user, src)
 	if(!ui)
-		ui = new /datum/vueui/modularcomputer(user, src, "security-guntracker", 600, 400, "Firearm Control")
+		ui = new /datum/vueui/modularcomputer(user, src, "mcomputer-security-guntracker", 600, 400, "Firearm Control")
 	ui.open()
 	ui.auto_update_content = TRUE
 
 /datum/computer_file/program/guntracker/vueui_transfer(oldobj)
 	. = FALSE
-	var/uis = SSvueui.transfer_uis(oldobj, src, "security-guntracker", 600, 400, "Firearm Control")
+	var/uis = SSvueui.transfer_uis(oldobj, src, "mcomputer-security-guntracker", 600, 400, "Firearm Control")
 	for(var/tui in uis)
 		var/datum/vueui/ui = tui
 		ui.auto_update_content = TRUE
@@ -30,6 +30,9 @@
 	. = ..()
 	data = . || data || list()
 
+	// Gather data for computer header
+	data["_PC"] = get_header_data(data["_PC"])
+
 	var/turf/T = get_turf(computer.loc)
 	var/list/wireless_firing_pins_data = list()
 	for(var/i in wireless_firing_pins)

html/changelogs/arrow768.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes:
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.
+author: Arrow768
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - bugfix: "Fixes the guntracker program missing the modular computer header."