Various fixes

Models/Constants.ts

@@ -2,7 +2,7 @@ import {Utils} from "../Utils";
 
 export default class Constants {
 
-    public static vNumber = "0.13.0-alpha-2";
+    public static vNumber = "0.13.0-alpha-3";
     public static ImgurApiKey = '7070e7167f0a25a'
     public static readonly mapillary_client_token_v4 = "MLY|4441509239301885|b40ad2d3ea105435bd40c7e76993ae85"
 

Models/ThemeConfig/DependencyCalculator.ts

@@ -71,6 +71,7 @@ export default class DependencyCalculator {
             let currentKey = undefined
             let currentLine = undefined
             const params: ExtraFuncParams = {
+                getFeatureById: _ => undefined,
                 getFeaturesWithin: (layerId, _) => {
 
                     if(layerId === '*'){

Models/ThemeConfig/Json/LayoutConfigJson.ts

@@ -219,7 +219,7 @@ export interface LayoutConfigJson {
          * If clustering is defined, defaults to 25
          */
         minNeededElements?: number
-    },
+    } | false,
 
     /**
      * The URL of a custom CSS stylesheet to modify the layout

Models/ThemeConfig/SourceConfig.ts

@@ -5,9 +5,9 @@ export default class SourceConfig {
 
     public readonly osmTags?: TagsFilter;
     public readonly overpassScript?: string;
-    public readonly geojsonSource?: string;
-    public readonly geojsonZoomLevel?: number;
-    public readonly isOsmCacheLayer: boolean;
+    public geojsonSource?: string;
+    public geojsonZoomLevel?: number;
+    public isOsmCacheLayer: boolean;
     public readonly mercatorCrs: boolean;
 
     constructor(params: {