fix(typo): "though" -> "through" in "Ka'het: Patir Mystery 5" (endless-sky#10850)

Author: TheGiraffe3

data/kahet/kahet missions.txt

@@ -622,7 +622,7 @@ mission "Ka'het: Patir Mystery 5"
 			label danger
 			`	"There is no way to be certain, but this is the only possible way to get in without destroying half of the complex.`
 			label open
-			`	"This," Dusk says as he presses a switch in the middle of the panel, "is what we were looking for." Soon after, the door in front of you opens, revealing a small room with another door at the opposite end. You follow Dusk inside, where he takes out the scanner again to look for another control panel. Once that is open, another switch allows him to close the door. Only the lights on your helmet keep you from being submerged in complete darkness. Looking around, you notice that the architecture is distinctly alien, with rounded angles on every side of the room and buttresses on either side of the doors. The ring itself is too small for you to pass through it standing upright, but the low gravity of the asteroid lets you almost fly though it without much trouble. "We now have to wait for the room to pressurize," he tells you.`
+			`	"This," Dusk says as he presses a switch in the middle of the panel, "is what we were looking for." Soon after, the door in front of you opens, revealing a small room with another door at the opposite end. You follow Dusk inside, where he takes out the scanner again to look for another control panel. Once that is open, another switch allows him to close the door. Only the lights on your helmet keep you from being submerged in complete darkness. Looking around, you notice that the architecture is distinctly alien, with rounded angles on every side of the room and buttresses on either side of the doors. The ring itself is too small for you to pass through it standing upright, but the low gravity of the asteroid lets you almost fly through it without much trouble. "We now have to wait for the room to pressurize," he tells you.`
 			choice
 				`	"How long do you think it will it take?"`
 				`	"Would it be safe to remove our helmets after that?"`