Hold config state from the generated schedule; avoids desync issues when changing configs and re-exporting data without generating new schedule

src/routes/components/schedule/generate.svelte

@@ -48,11 +48,10 @@
   }
 
   async function export_file() {
-    let config = rota.toDTO();
     let schedule = rota.solution;
 
     try {
-      await invoke("export", { config, schedule });
+      await invoke("export", { schedule });
     } catch (error) {
       console.error("Error:", error);
     }