Adjust generateGeohash from static to standard method to support singleton approach in Svelte without additonal import/exports

src/lib/client.ts

@@ -1,7 +1,7 @@
 import { BaseClient } from "./base.js";
 import { PisModule } from "../modules/pis.js";
 import { LocationFilterModule } from "../modules/locationFilter.js";
-import { StationDataModule } from "src/modules/stationData.js";
+import { StationDataModule } from "../modules/stationData.js";
 
 export class OwlBoardClient extends BaseClient {
     public readonly pis: PisModule;

src/modules/stationData.ts

@@ -13,7 +13,7 @@ export class StationDataModule {
      * @param ln Longitude
      * @returns Geohash as string
      */
-    static generateGeohash(lt: number, ln: number): string {
+    generateGeohash(lt: number, ln: number): string {
         return Geohash.encode(lt, ln, 6);
     }