Hopefully fix build

Author: fallaciousreasoning

src/components/SettingsView.svelte

@@ -21,10 +21,12 @@
   })
 
   onMount(() => {
+    if (!$settings.layers) $settings.layers = {}
+
     for (const layer of layerDefinitions) {
       if (!$settings.layers[layer.name]) {
         $settings.layers[layer.name] = {
-          cache: false,
+          cache: true,
         }
       }
     }

src/stores/settings.ts

@@ -45,6 +45,7 @@ const createStore = () => {
 
     // Load settings from disk.
     loadSettings().then(settings => {
+        settings = {...defaultValue, ...settings }
         if (settings)
             set(settings);
         resolve(settings)