fix(kernelApi): reset needRestart flag after core restart

Author: Ayideyia

frontend/src/App.vue

@@ -151,7 +151,10 @@ envStore.setupEnv().then(async () => {
 
   <CommandView v-if="!loading" />
 
-  <div v-if="kernelApiStore.needRestart" class="fixed right-32 bottom-32">
+  <div
+    v-if="kernelApiStore.needRestart || kernelApiStore.restarting"
+    class="fixed right-32 bottom-32"
+  >
     <Button
       @click="handleRestartCore"
       v-tips="'home.overview.restart'"

frontend/src/stores/kernelApi.ts

@@ -276,6 +276,7 @@ export const useKernelApiStore = defineStore('kernelApi', () => {
 
     corePid.value = -1
     running.value = false
+    needRestart.value = false
 
     destroyCoreWebsockets()