Partially reverts #4614, leaving record defaults but separating exploitables and security (#5560)

## About The Pull Request

Partially reverts #4614.

Exploitables, background, and security are now separate.
## Why It's Good For The Game

This was never a good change. Exploitables and sec records hold
completely separate purposes. Sec should not see every single
exploitable node you have, basically. Additionally, some people have
stuff in their exploitables and background they cant access right now.
Exposing them again lets people retrieve them.
## Proof Of Testing
<details>
<summary>Screenshots/Videos</summary>

<img width="787" height="620" alt="image"
src="https://github.com/user-attachments/assets/b8b464a8-ff4a-40f1-a48f-086c99abb6af"
/>

</details>

## Changelog
🆑
add: Exploitables, background, and security records are now distinct
record fields, instead of being combinced.
/🆑

code/datums/records/manifest.dm

@@ -143,7 +143,8 @@ GLOBAL_DATUM_INIT(manifest, /datum/manifest, new)
 		locked_dna = record_dna,
 		mind_ref = person.mind,
 		// BUBBER EDIT ADDITION BEGIN - Records
-		exploitable_information = person_client?.prefs.read_preference(/datum/preference/text/security) || "",
+		exploitable_information = person_client?.prefs.read_preference(/datum/preference/text/exploitable) || "",
+		background_information = person_client?.prefs.read_preference(/datum/preference/text/background) || "",
 		// BUBBER EDIT END
 	)
 

code/datums/records/record.dm

@@ -170,6 +170,7 @@
 	datum/mind/mind_ref,
 	// BUBBER EDIT BEGIN - Records
 	exploitable_information = "",
+	background_information = "",
 )
 	. = ..()
 	src.locked_dna = locked_dna
@@ -178,7 +179,8 @@
 
 	GLOB.manifest.locked += src
 
-	// BUBBER EDIT BEGIN - Records
+	// BUBBER EDIT BEGIn - Records
+	src.background_information = background_information
 	src.exploitable_information = exploitable_information
 	// BUBBER EDIT END