fix: improve axis translations for facet inputs

Author: graphieros

i18n/locales/en.json

@@ -1244,8 +1244,8 @@
         "description": "Scatter plot chart mapping {x_name} versus {y_name} for the {packages} packages. {analysis}. {watermark}"
       },
       "filename": "{x}-vs-{y}-scatter-chart",
-      "x_axis": "X-AXIS",
-      "y_axis": "Y-AXIS"
+      "x_axis": "X-AXIS ↦",
+      "y_axis": "Y-AXIS ↥"
     },
     "no_dependency": {
       "label": "(No dependency)",

i18n/locales/fr-FR.json

@@ -1241,8 +1241,8 @@
         "description": "Graphique en nuage de points représentant {x_name} en fonction de {y_name} pour les paquets {packages}. {analysis}. {watermark}"
       },
       "filename": "{x}-vs-{y}-scatter-chart",
-      "x_axis": "Abscisses",
-      "y_axis": "Ordonnées"
+      "x_axis": "Abscisses ↦",
+      "y_axis": "Ordonnées ↥"
     },
     "no_dependency": {
       "label": "(Sans dépendance)",