Make new categories translatable

lang/en.json

@@ -24,6 +24,8 @@
     "category:culture_religion": "Culture and Religion",
     "category:cycle_amenities": "Amenities",
     "category:cycle_routes": "Cycle Routes",
+    "category:developable_areas": "Developable Areas",
+    "category:developments": "Planning and Construction",
     "category:education": "Educational Services",
     "category:electric_power": "Electric Power",
     "category:emergency": "Emergency Services",
@@ -55,6 +57,7 @@
     "category:playgrounds": "Playground",
     "category:post": "Post",
     "category:power_routes": "Power routes",
+    "category:proposals": "Proposals",
     "category:pt": "Public transport map",
     "category:pt:routes": "Routes",
     "category:pt:stops": "Stops & Stations",