Adjust default settings

The ground now defaults to very-low, not bottom.
Zoom-on-add defaults to off.

macrovision.js

@@ -3114,7 +3114,7 @@ const settingsData = {
         name: "Ground Position",
         desc: "How high the ground is if the y-axis is locked",
         type: "select",
-        default: "bottom",
+        default: "very-low",
         options: groundPosChoices,
         get value() {
             return config.groundPos;
@@ -3168,7 +3168,7 @@ const settingsData = {
         name: "Zoom On Add",
         desc: "Zoom to fit when you add a new entity",
         type: "toggle",
-        default: true,
+        default: false,
         get value() {
             return config.autoFitAdd;
         },