Show grid squares by default on rover planner

assets/js/rover_map_hook.js

@@ -7,7 +7,7 @@ export const RoverMap = {
     this.scoreOverlay = null
     this.gridLookup = new Map()
     this.gridLayer = L.layerGroup()
-    this.gridVisible = false
+    this.gridVisible = true
 
     this.colorScale = [
       { min: 80, r: 0, g: 255, b: 163 },
@@ -30,6 +30,8 @@ export const RoverMap = {
 
     this.map = map
     this.stationMarkers.addTo(map)
+    this.gridLayer.addTo(map)
+    updateGridOverlay(map, this.gridLayer)
 
     // Render pre-loaded propagation scores
     const initialScores = JSON.parse(this.el.dataset.scores || "[]")

lib/microwaveprop_web/live/rover_live.ex

@@ -39,7 +39,7 @@ defmodule MicrowavepropWeb.RoverLive do
        url_loaded: false,
        initial_scores_json: Jason.encode!(initial_scores),
        bounds: @initial_bounds,
-       grid_visible: false
+       grid_visible: true
      )}
   end