Show an aid to navigation's kind, not a speed or heading

A buoy's card, selected card and HUD readout showed "0.0KT · 135°" from
whatever its source reported. A fixed mark has neither, so they now show
its kind alone, whole ("CARDINAL MARK N", which the 14-character type cut
read as "CARDINAL MARK "), in the bone white of its disc.

isAidToNavigation now knows every kind an aid report names ("Light, with
sectors", "Fixed structure off shore" had no aid word), leaves out a
"Buoy Layer" as it does a tender, and matches each type text once: the
vessel layer asks per vessel on its rotation pass, which now skips the
aid discs it never turns.

Aid rows no longer cost ships their place: aisStreamRows lists every
vessel ahead of every aid, so the layer's 12,000-row request never drops
a ship for a buoy, and vessels_in_area (and the brief built on it)
counts ships only. An aid's name runs on into its NameExtension.

src/i18n/locales/pt.json

@@ -1289,6 +1289,7 @@
   "AIS: {name}": "AIS: {name}",
   "{type}  SPD: {speed}  HDG: {heading}": "{type}  SPD: {speed}  HDG: {heading}",
   "VESSEL": "EMBARCAÇÃO",
+  "AID TO NAVIGATION": "AUXÍLIO À NAVEGAÇÃO",
   "{speed}KT": "{speed} KT",
   "{heading}DEG": "{heading}°",
   "POS: LIVE": "POS: AO VIVO",