i18n(voice): tighten the geometry translations after a second review

- keep inserted place names clear of prepositions and articles they
  would need in fr, pt, ru and uk
- use each catalog's own terms: punto de interés, trazar contorno,
  Buscando, 加載/匹配/搜索 and full-width colons in ja
- list the Italian "Area" as intentionally the same as English

src/i18n/locales/fr.json

@@ -3025,7 +3025,7 @@
   "Not drawn: {parts}": "Non dessiné : {parts}",
   "approximate": "approximatif",
   "{pct}% cloud": "{pct} % de nuages",
-  "Over {area}": "Au-dessus de {area}",
+  "Over {area}": "Zone : {area}",
   "{count} of {total} acquisitions match": {
     "many": "Acquisitions correspondantes : {count} sur {total}",
     "one": "Acquisitions correspondantes : {count} sur {total}",
@@ -3041,18 +3041,18 @@
   "About {count} {kind}": "{kind} : environ {count}",
   "At least {count} {kind}": "{kind} : au moins {count}",
   "{count} {kind}": "{kind} : {count}",
-  "In {area}": "Dans {area}",
-  "Area around {place}": "Zone autour de {place}",
-  "Area around landmark": "Zone autour d’un repère",
-  "Outline {place}": "Contour de {place}",
-  "Outline area": "Contour d’une zone",
+  "In {area}": "Zone : {area}",
+  "Area around {place}": "Environs : {place}",
+  "Area around landmark": "Environs d'un repère",
+  "Outline {place}": "Délimiter {place}",
+  "Outline area": "Délimiter une zone",
   "Find {place}": "Trouver {place}",
   "Find area": "Trouver une zone",
   "Find recent imagery": "Trouver des images récentes",
   "Find {what}": "Trouver {what}",
   "Find places": "Trouver des lieux",
   "Drawing outline": "Dessin du contour",
-  "Searching imagery catalog": "Recherche dans le catalogue d’images",
+  "Searching imagery catalog": "Recherche dans le catalogue d'images",
   "Loading imagery": "Chargement des images",
   "Searching OpenStreetMap": "Recherche dans OpenStreetMap",
   "voice area|Area": "Zone"