refactor(cockpit): a provider words its text with getLocale and onLocaleChange from the ./i18n entry; the ./i18n/locale export, which gave only those two, is removed

docs/APPLICATION.md

@@ -248,7 +248,7 @@ their `this`; one that throws or returns a promise is treated as having
 failed.
 
 ```js
-import { getLocale, onLocaleChange } from '@gods-eye-view/core/i18n/locale';
+import { getLocale, onLocaleChange } from '@gods-eye-view/core/i18n';
 import { pointAtS } from '@gods-eye-view/core/layers/rail/paths';
 
 const words = {
@@ -302,7 +302,7 @@ const ride = {
 createApplicationControls({ /* ... */ services: { cockpitSubjects: [ride] } });
 ```
 
-`@gods-eye-view/core/i18n/locale` gives `getLocale()` and `onLocaleChange()`:
+The `./i18n` entry gives `getLocale()` and `onLocaleChange()`:
 Core translates only its own strings, so a provider words its labels, entry
 face and HUD for the page's language (labels may be functions, as above; the
 HUD is read again on a change). `@gods-eye-view/core/layers/rail/paths` is the
@@ -313,7 +313,7 @@ and Transit read APIs in `src/layers/rail/cockpitSubject.js` and
 `src/layers/transit/cockpitSubject.js`. A snapshot read again while nothing in
 it changed is the one read before, so `read` may take one on every update; a
 train's `path.line` is a frozen copy of its line, for `pointAtS` and
-`projectOnPath`. The `i18n/locale` and `layers/rail/paths` exports and the
+`projectOnPath`. The `layers/rail/paths` export and the
 Rail and Transit read APIs (`getSelectedTrain`, `getSelectedVehicle`,
 `getCockpitSubject` and the snapshots they return, `path.line` among them)
 are experimental and may change without notice.

docs/CURRENT-STATE.md

@@ -2251,7 +2251,7 @@ picture under the HUD (with passing light streaks, which stop under reduced
 motion), arrow-key look-around when the provider asks for it, and a progress
 line along the bottom edge (`src/cockpitProgress.js`: close ticks merge,
 labels never overlap). Core translates none of the provider's text: a host
-words it for the page's language (`@gods-eye-view/core/i18n/locale`:
+words it for the page's language (`@gods-eye-view/core/i18n`:
 `getLocale`, `onLocaleChange`). Its entry face, labels and look may be
 functions, read again when they are shown and on a change of language, as the
 HUD view is.
@@ -2267,9 +2267,8 @@ feed held, clicks and Escape left to the view; the held copy stays the one
 drawn of its train while held, another feed's copy hidden, and it keeps
 moving, still selected, when its category is turned off) and
 `focusTrain(key)` (false for a train the layer does not draw); its pure path
-module is exported as `@gods-eye-view/core/layers/rail/paths`. That export,
-`@gods-eye-view/core/i18n/locale` and these read APIs are experimental and may
-change without notice. A snapshot read again while nothing in it changed is
+module is exported as `@gods-eye-view/core/layers/rail/paths`. That export
+and these read APIs are experimental and may change without notice. A snapshot read again while nothing in it changed is
 the one read before, and its `path.line` is a frozen copy. Transit
 offers the same for a vehicle (`getSelectedVehicle`, `getCockpitSubject`,
 `setCockpitSubject`, `focusVehicle`): a held vehicle keeps playing when it is