Set fixPrefix to false on the sightlines

This makes them switch to kilometers automatically

macrovision.js

@@ -617,6 +617,7 @@ function updateRatios() {
 
             const sightline = math.sqrt(math.add(first, second)).to(config.height.units[0].unit.name)
 
+            sightline.fixPrefix = false
             text += selectedEntity.name + " could see for " + math.format(sightline, { precision: 3 }) + "\n"
         }
     }
@@ -636,6 +637,7 @@ function updateRatios() {
 
             const sightline = math.sqrt(math.subtract(first, second)).to(config.height.units[0].unit.name)
 
+            sightline.fixPrefix = false
             text += selectedEntity.name + " could see " + prevSelectedEntity.name + " from " + math.format(sightline, { precision: 3 }) + " away\n"
         }
     }