Localisation updates from https://translatewiki.net.

Change-Id: I810dcc528035dc03b077831f2764ef89beb9a017

i18n/frc.json

@@ -1,10 +1,12 @@
 {
 	"@metadata": {
 		"authors": [
+			"Beunice",
 			"Hangmanwa7id"
 		]
 	},
 	"categorytree-expand": "Développer",
+	"categorytree-member-counts": "contient $1 sous-catégorie{{PLURAL:$1||s}}, $2 page{{PLURAL:$2||s}} et $3 fichier{{PLURAL:$3||s}}",
 	"categorytree-num-categories": "$1 C",
 	"categorytree-num-pages": "$1 P",
 	"categorytree-num-files": "$1 F"