add connectionStatus state and component

src/render/shared/connectionStatus.ts

@@ -2,9 +2,11 @@
 import { ref } from "vue";
 
 export const isAlive = ref(false);
+
 export const loading = ref(true);
 
 export const setConnectionStatus: IpcListenerCallback<boolean | null> = (payload) => {
+    console.log('received payload', payload)
     if (payload) {
         isAlive.value = payload;
     } else {