Street Level: leave an interrupted link and an overtaken view alone (gekh review)

- A pasted or start-up link opens its photos only when its restore's camera
  landed: a drag or search during the restore flight keeps the camera.
- A posted view whose photo step was cancelled or superseded no longer closes
  the viewer or flies; one that found a photo it could not load keeps the error.
- openNearest gains `replace` (keep the open photo while it looks, close it
  only when nothing opens, so EXPAND stays) and `proceed()` (asked before a
  found photo loads); the action uses both, so a navigation, a gesture or a
  hiding mode during the lookup loads no billed panorama.
- Mapillary's timeout message is a msg() string with all eleven translations.

scripts/package-boundaries.json

@@ -2087,6 +2087,7 @@
       "scripts/qa-street-level.mjs",
       "src/i18n/index.js",
       "src/i18n/locale.js",
+      "src/i18n/marker.js",
       "src/i18n/locales/ar.json",
       "src/i18n/locales/de.json",
       "src/i18n/locales/es.json",