Add mssing assets

Models/Bounds.ts

@@ -1,6 +0,0 @@
-export default interface Bounds {
-    north: number,
-    east: number,
-    south: number,
-    west: number
-}

Models/Constants.ts

@@ -4,6 +4,16 @@ export default class Constants {
 
     public static vNumber = "0.10.0-alpha-4";
     public static ImgurApiKey = '7070e7167f0a25a'
+    public static defaultOverpassUrls = [
+        // The official instance, 10000 queries per day per project allowed
+        "https://overpass-api.de/api/interpreter",
+        // 'Fair usage'
+        "https://overpass.kumi.systems/api/interpreter",
+        // "https://overpass.nchc.org.tw/api/interpreter",
+        "https://overpass.openstreetmap.ru/cgi/interpreter",
+        // The french api, only 1000 per day per project allowed, so we put it as last resort
+        "https://overpass.openstreetmap.fr/api/interpreter"
+    ]
 
     // The user journey states thresholds when a new feature gets unlocked
     public static userJourney = {

Models/ThemeConfig/Json/LayoutConfigJson.ts

@@ -263,9 +263,9 @@ export interface LayoutConfigJson {
     enablePdfDownload?: boolean;
 
     /**
-     * Set a different overpass URL. Default: https://overpass-api.de/api/interpreter
+     * Set one or more overpass URLs to use for this theme..
      */
-    overpassUrl?: string;
+    overpassUrl?: string | string[];
     /**
      * Set a different timeout for overpass queries - in seconds. Default: 30s
      */

Models/ThemeConfig/LayoutConfig.ts

@@ -6,6 +6,7 @@ import AllKnownLayers from "../../Customizations/AllKnownLayers";
 import {Utils} from "../../Utils";
 import LayerConfig from "./LayerConfig";
 import {LayerConfigJson} from "./Json/LayerConfigJson";
+import Constants from "../Constants";
 
 export default class LayoutConfig {
     public readonly id: string;
@@ -50,7 +51,7 @@ export default class LayoutConfig {
     How long is the cache valid, in seconds?
      */
     public readonly cacheTimeout?: number;
-    public readonly overpassUrl: string;
+    public readonly overpassUrl: string[];
     public readonly overpassTimeout: number;
     public readonly official: boolean;
 
@@ -157,7 +158,14 @@ export default class LayoutConfig {
         this.enablePdfDownload = json.enablePdfDownload ?? false;
         this.customCss = json.customCss;
         this.cacheTimeout = json.cacheTimout ?? (60 * 24 * 60 * 60)
-        this.overpassUrl = json.overpassUrl ?? "https://overpass-api.de/api/interpreter"
+        this.overpassUrl = Constants.defaultOverpassUrls
+        if(json.overpassUrl !== undefined){
+            if(typeof json.overpassUrl === "string"){
+                this.overpassUrl = [json.overpassUrl]
+            }else{
+                this.overpassUrl = json.overpassUrl
+            }
+        }
         this.overpassTimeout = json.overpassTimeout ?? 30
 
     }