Refactoring: move 'snapToLayer' from 'preciseInput' into the preset, remove 'preferredBackground'. The addNewPointFlow _always_ shows the precise input flow with the basic map; so the preferredBackground became irrelevant

assets/layers/village_green/village_green.json

@@ -51,4 +51,4 @@
     "de": "Eine Ebene mit Dorfangern (kommunale Grünflächen, aber nicht wirklich Parks)",
     "ca": "Una capa que mostra “village-green” (que són zones verdes comunals, però no parcs del tot)"
   }
-}
+}