Dropship hijack offset change (#4283)

# About the pull request

I believe this is the correct change since we moved the docking_port on
dropships. Hopefully I didn't make it backwards 😳

# Explain why it's good for the game

Dropships crashing into space is bad.

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog

:cl: Morrow
fix: Fixed dropship hijack offset
/:cl:

code/modules/shuttle/dropship_hijack.dm

@@ -1,5 +1,5 @@
-#define HIJACK_CRASH_SITE_OFFSET_X -5
-#define HIJACK_CRASH_SITE_OFFSET_Y -11
+#define HIJACK_CRASH_SITE_OFFSET_X 0
+#define HIJACK_CRASH_SITE_OFFSET_Y 0
 
 /datum/dropship_hijack
 	var/obj/docking_port/mobile/shuttle