Reorder MSAL plugin functions

I saw an error in dev (which I haven't been able to replicate) about some minified function/variable begin referenced before its definition, and I think it might be this, which can now be eagerly invoked in `handleResponse` as we do initialization synchronously

In any case, it probably doesn't hurt

frontend/plugins/msal.ts

@@ -100,6 +100,10 @@ export default defineNuxtPlugin(async (_nuxtApp) => {
 
   const scopes: string[] = ['openid', 'profile', 'offline_access', msalConfig.auth.clientId]
 
+  const router = useRouter()
+  const { userClientWithAuth } = useAPI()
+  const localePath = useLocalePath()
+
   const accounts = useState<AccountInfo[] | undefined>('useMSAL.accounts')
   const interactionStatus = useState<InteractionStatus | undefined>('useMSAL.interactionStatus')
 
@@ -134,6 +138,24 @@ export default defineNuxtPlugin(async (_nuxtApp) => {
     throw new Error('failed to init MSAL instance', { cause: error })
   }
 
+  const signOut = (): Promise<void> => {
+    const logoutRequest = {
+      postLogoutRedirectUri: msalConfig.auth.redirectUri,
+      mainWindowRedirectUri: msalConfig.auth.logoutUri,
+    }
+    const userClient = userClientWithAuth('') // Logging out doesn't require auth.
+    return Promise.all([
+      userClient.logout(),
+      instance.logoutPopup(logoutRequest),
+    ])
+      .catch((e) => { console.log('failed to log out', e) })
+      .then(() => { /* cast to void */ })
+      .finally(() => {
+        isAuthenticated.value = false
+        void router.push(localePath('/'))
+      })
+  }
+
   const handleResponse = async (response: AuthenticationResult, force = false): Promise<AuthenticationResult> => {
     if (!response?.account) {
       return await Promise.resolve(response)
@@ -183,10 +205,6 @@ export default defineNuxtPlugin(async (_nuxtApp) => {
     console.log('multiple accounts found, user needs to select one')
   }
 
-  const router = useRouter()
-  const { userClientWithAuth } = useAPI()
-  const localePath = useLocalePath()
-
   const account = computed(() => {
     if (!accounts.value) {
       return undefined
@@ -278,24 +296,6 @@ export default defineNuxtPlugin(async (_nuxtApp) => {
       })
   }
 
-  const signOut = (): Promise<void> => {
-    const logoutRequest = {
-      postLogoutRedirectUri: msalConfig.auth.redirectUri,
-      mainWindowRedirectUri: msalConfig.auth.logoutUri,
-    }
-    const userClient = userClientWithAuth('') // Logging out doesn't require auth.
-    return Promise.all([
-      userClient.logout(),
-      instance.logoutPopup(logoutRequest),
-    ])
-      .catch((e) => { console.log('failed to log out', e) })
-      .then(() => { /* cast to void */ })
-      .finally(() => {
-        isAuthenticated.value = false
-        void router.push(localePath('/'))
-      })
-  }
-
   return {
     provide: {
       msal: {