Use nav beacon locations for announcements (#26437)

* use nav beacon locations for announcements

* :thumbs_up:

Resources/Locale/en-US/navmap-beacons/station_map.ftl

@@ -11,3 +11,8 @@ nav-beacon-examine-text = It is [color={$enabled ->
     [true] forestgreen]on
     *[false] crimson]off
 }[/color] and the display reads [color={$color}]"{$label}"[/color]
+
+nav-beacon-pos-no-beacons = in the middle of nowhere
+nav-beacon-pos-format = [color={$color}]near {$marker}[/color]
+nav-beacon-pos-format-direction = [color={$color}]{$modifier}{$direction} of {$marker}[/color]
+nav-beacon-pos-format-direction-mod-far = far {""}