Par: replace ZD1 with ha (see jalhyd#223)

src/app/calculators/par/config.json

@@ -21,7 +21,7 @@
                 "property": "parType",
                 "default": "PLANE"
             },
-            "ZD1",
+            "ha",
             "S",
             {
                 "id": "P",

src/app/calculators/par/en.json

@@ -7,7 +7,7 @@
 
     "fs_geometry": "Pass geometry",
 
-    "ZD1": "Upstream spilling elevation",
+    "ha": "Upstream head",
     "S": "Slope",
     "P": "Space between baffles",
     "L": "Total width of baffle / pattern (superactive)",
@@ -16,7 +16,7 @@
     "M": "Number of longitudinal strips",
 
     "h": "Water level in the pass",
-    "ha": "Upstream head",
+    "ZD1": "Upstream spilling elevation",
     "qStar": "Dimensionless flow",
     "V": "Flow velocity",
     "Nb": "Number of baffles",

src/app/calculators/par/fr.json

@@ -7,7 +7,7 @@
 
     "fs_geometry": "Géométrie de la passe",
 
-    "ZD1": "Cote de déversement à l'amont",
+    "ha": "Charge amont",
     "S": "Pente",
     "P": "Espacement entre les ralentisseurs",
     "L": "Largeur totale du ralentisseur  / du motif (suractifs)",
@@ -16,7 +16,7 @@
     "M": "Nombre de bandes longitudinales",
 
     "h": "Hauteur d'eau dans la passe",
-    "ha": "Charge amont",
+    "ZD1": "Cote de déversement à l'amont",
     "qStar": "Débit adimensionnel",
     "V": "Vitesse débitante",
     "Nb": "Nombre de ralentisseurs",