Clarity on hijack announcements (#4989)

# About the pull request

Makes it clear that pods will also not crash at 100% fuel. And minor
change to make the announcement flow a bit better.

# Explain why it's good for the game

Makes game mechanics a bit more clear for new players.


# 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:
qol: ARES hijack announcement specifies that pods will not crash at 100%
fuel
/:cl:

code/controllers/subsystem/hijack.dm

@@ -216,13 +216,13 @@ SUBSYSTEM_DEF(hijack)
 
 	switch(announce)
 		if(1)
-			marine_announcement("Emergency fuel replenishment at 25 percent. Lifeboat emergency early launch now available.[marine_warning_areas ? "\nTo increase speed restore power to the following areas: [marine_warning_areas]" : " All fueling areas operational."]", HIJACK_ANNOUNCE)
+			marine_announcement("Emergency fuel replenishment is at 25 percent. Lifeboat emergency early launch is now available.[marine_warning_areas ? "\nTo increase speed, restore power to the following areas: [marine_warning_areas]" : " All fueling areas operational."]", HIJACK_ANNOUNCE)
 		if(2)
-			marine_announcement("Emergency fuel replenishment at 50 percent.[marine_warning_areas ? "\nTo increase speed restore power to the following areas: [marine_warning_areas]" : " All fueling areas operational."]", HIJACK_ANNOUNCE)
+			marine_announcement("Emergency fuel replenishment is at 50 percent.[marine_warning_areas ? "\nTo increase speed, restore power to the following areas: [marine_warning_areas]" : " All fueling areas operational."]", HIJACK_ANNOUNCE)
 		if(3)
-			marine_announcement("Emergency fuel replenishment at 75 percent.[marine_warning_areas ? "\nTo increase speed restore power to the following areas: [marine_warning_areas]" : " All fueling areas operational."]", HIJACK_ANNOUNCE)
+			marine_announcement("Emergency fuel replenishment is at 75 percent.[marine_warning_areas ? "\nTo increase speed, restore power to the following areas: [marine_warning_areas]" : " All fueling areas operational."]", HIJACK_ANNOUNCE)
 		if(4)
-			marine_announcement("Emergency fuel replenishment at 100 percent. Safe utilization of lifeboats now possible.", HIJACK_ANNOUNCE)
+			marine_announcement("Emergency fuel replenishment is at 100 percent. Safe utilization of lifeboats and pods is now possible.", HIJACK_ANNOUNCE)
 			if(!admin_sd_blocked)
 				addtimer(CALLBACK(src, PROC_REF(unlock_self_destruct)), 8 SECONDS)