Add new theme "maths"

src/app/config.json

@@ -56,6 +56,14 @@
             },
             "calculators": [ 8, 9, 10 ]
         },
+        {
+            "name": "OUTILS_MATHEMATIQUES",
+            "image": {
+                "path": "maths.jpg",
+                "credits": "Toms Baugis, \"Lineāli\" / CC BY 2.0"
+            },
+            "calculators": [ 22, 23, 24, 25 ]
+        },
         {
             "_comment": "card for calculators not used in any theme",
             "image": {

src/locale/messages.en.json

@@ -460,6 +460,8 @@
     "INFO_THEME_LOIS_D_OUVRAGES_TITRE": "Hydraulic structures",
     "INFO_THEME_MODULES_INUTILISES_DESCRIPTION": "Various calculation modules",
     "INFO_THEME_MODULES_INUTILISES_TITRE": "Other calculation modules",
+    "INFO_THEME_OUTILS_MATHEMATIQUES_TITRE": "Mathematical tools",
+    "INFO_THEME_OUTILS_MATHEMATIQUES_DESCRIPTION": "Miscellaneous generic mathematical tools",
     "INFO_THEME_PASSE_A_BASSIN_DESCRIPTION": "Tools for sizing a fish pass made with pools also called fish steps",
     "INFO_THEME_PASSE_A_BASSIN_TITRE": "Fish ladder",
     "INFO_THEME_PASSE_NATURELLE_DESCRIPTION": "Tools for sizing a natural fish pass also called macroroughness pass or rock-ramp fish pass",

src/locale/messages.fr.json

@@ -459,6 +459,8 @@
     "INFO_THEME_LOIS_D_OUVRAGES_TITRE": "Lois d'ouvrages",
     "INFO_THEME_MODULES_INUTILISES_DESCRIPTION": "Modules de calculs divers",
     "INFO_THEME_MODULES_INUTILISES_TITRE": "Autres modules de calcul",
+    "INFO_THEME_OUTILS_MATHEMATIQUES_TITRE": "Outils mathématiques",
+    "INFO_THEME_OUTILS_MATHEMATIQUES_DESCRIPTION": "Divers outils mathématiques génériques",
     "INFO_THEME_PASSE_A_BASSIN_DESCRIPTION": "Outils de dimensionnement d'une passe à poissons de type passe à bassins ou encore appelée échelle à poisson",
     "INFO_THEME_PASSE_A_BASSIN_TITRE": "Passe à bassins",
     "INFO_THEME_PASSE_NATURELLE_DESCRIPTION": "Outils de dimensionnement d'une passe à poissons de type passe naturelle ou encore appelée passe à macro-rugosités",