cleared execution data after changing a scenario, added logic to change scenario execution from url

src/views/pages/ScenarioExec.vue

@@ -178,6 +178,8 @@ watch(() => route.params.id, fetchScenario);
 
     //Function to fetch scenarios
     function fetchScenario(id) {
+        data_loaded.value = false; 
+        formData.value = {}; 
         loading.value = true;
         axios.get(`/scenarios/${id}`)
             .then(response => {