fix: timers is not reset if no timing entry has been found (#8134)

* fix: timers is not reset if no timing entry has been found

* fix: check mounting state

packages/insomnia/src/ui/hooks/use-execution-state.ts

@@ -14,6 +14,8 @@ export function useExecutionState({ requestId }: { requestId?: string }) {
       const targetSteps = await window.main.getExecution({ requestId });
       if (targetSteps) {
         isMounted && setSteps(targetSteps);
+      } else {
+        isMounted && setSteps([]);
       }
     };
     fn();