feat(ui): render the ORBIT indicator from the location tray

LocationControls offers the indicator with showOrbit(active) in its
presented tray instead of building it on the body, and the scene chrome
teleports it there. Orbit toggles, including the voice switch, light it
through the controls.

CHANGELOG.md

@@ -73,7 +73,9 @@
   the search error (`setSearchError()`), and hands it to its `publish`
   option, and Core's dock renders it and calls `chooseCity()` and
   `choosePoi()`. Its `elements` are now only `search`, `searchToggle` and
-  `resetButtons` (samehkhamis).
+  `resetButtons`. `createOrbitIndicator()` is replaced by
+  `showOrbit(active)`, which adds the ORBIT indicator to the presented tray
+  as `orbit: { active }` (null until offered) (samehkhamis).
 
 ## [0.3.0] — 2026-10-27 — Street Level, On Your Phone, in Your Language