allows removing hillshade

web/src/lib/components/trail/map_with_elevation_maplibre.svelte

@@ -464,9 +464,7 @@
                 },
                 layout: {
                     "text-field": "{point_count_abbreviated}",
-                    "text-font": [
-                        "Noto Sans Regular",
-                    ],
+                    "text-font": ["Noto Sans Regular"],
                     "text-size": 12,
                 },
             });
@@ -1013,7 +1011,7 @@
             );
         }
 
-        if (showTerrain) {
+        if (showTerrain && page.data.settings?.terrain?.terrain) {
             map!.addControl(
                 new M.TerrainControl({
                     source: "terrain",

web/src/lib/models/api/settings_schema.ts

@@ -14,7 +14,7 @@ const SettingsCreateSchema = z.object({
     }).optional().nullable(),
     category: z.string().optional(),
     tilesets: z.array(z.object({ name: z.string(), url: z.string().url() })).optional().nullable(),
-    terrain: z.object({ terrain: z.string().url(), hillshading: z.string().url() }).optional().nullable(),
+    terrain: z.object({ terrain: z.string().url().or(z.literal('')).optional(), hillshading: z.string().url().or(z.literal('')).optional() }).optional().nullable(),
     user: z.string().optional(),
     privacy: z.object({
         account: z.enum(["public", "private"]),

web/src/lib/models/settings.ts

@@ -22,7 +22,7 @@ class Settings {
   location?: { name: string, lat: number, lon: number } | null;
   category?: string;
   tilesets?: ({ name: string, url: string }[]) | null
-  terrain?: { terrain: string, hillshading: string } | null;
+  terrain?: { terrain?: string, hillshading?: string } | null;
   user?: string;
   privacy?: { account: "public" | "private", trails: "public" | "private", lists: "public" | "private" } | null
   notifications?: Record<NotificationType, { web: boolean, email: boolean }> | null