fix(App): remove duplicated logic in beforeMount hook

- `tokenStore.updateToken` is called in App#beforeRouteChangeListener
- dispatch('joinConversation') is called in LeftSidebar#onRouteChange for users and EventBus for guests

Signed-off-by: Maksim Sukharev <antreesy.web@gmail.com>

src/App.vue

@@ -28,6 +28,7 @@ import { useIsMobile } from '@nextcloud/vue/composables/useIsMobile'
 import { spawnDialog } from '@nextcloud/vue/functions/dialog'
 import debounce from 'debounce'
 import { provide } from 'vue'
+import { START_LOCATION } from 'vue-router'
 import NcAppContent from '@nextcloud/vue/components/NcAppContent'
 import NcContent from '@nextcloud/vue/components/NcContent'
 import ConversationSettingsDialog from './components/ConversationSettings/ConversationSettingsDialog.vue'
@@ -225,19 +226,17 @@ export default {
 
 	beforeMount() {
 		if (!getCurrentUser()) {
+			EventBus.once('conversations-received', (params) => {
+				if (params.singleConversation) {
+					this.$store.dispatch('joinConversation', { token: params.singleConversation.token })
+				}
+			})
 			EventBus.once('joined-conversation', () => {
 				this.fixmeDelayedSetupOfGuestUsers()
 			})
 			EventBus.on('should-refresh-conversations', this.debounceRefreshCurrentConversation)
 		}
 
-		if (this.$route.name === 'conversation') {
-			// Update current token in the token store
-			this.tokenStore.updateToken(this.$route.params.token)
-			// Automatically join the conversation as well
-			this.$store.dispatch('joinConversation', { token: this.$route.params.token })
-		}
-
 		window.addEventListener('unload', () => {
 			console.info('Navigating away, leaving conversation')
 			if (this.token) {
@@ -343,6 +342,10 @@ export default {
 		})
 
 		EventBus.on('conversations-received', (params) => {
+			if (this.$route === START_LOCATION) {
+				// Initial navigation, should be handled in beforeRouteChangeListener
+				return
+			}
 			if (this.$route.name === 'conversation'
 				&& !this.$store.getters.conversation(this.token)) {
 				if (!params.singleConversation) {
@@ -360,19 +363,6 @@ export default {
 			this.$router.push({ name: 'forbidden' })
 		})
 
-		/**
-		 * Listens to the conversationsReceived globalevent, emitted by the conversationsList
-		 * component each time a new batch of conversations is received and processed in
-		 * the store.
-		 */
-		EventBus.once('conversations-received', () => {
-			if (!getCurrentUser()) {
-				// Set the current actor/participant for guests
-				const conversation = this.$store.getters.conversation(this.token)
-				this.actorStore.setCurrentParticipant(conversation)
-			}
-		})
-
 		const beforeRouteChangeListener = async (to, from, next) => {
 			if (this.isNextcloudTalkHashDirty) {
 				// Nextcloud Talk configuration changed, reload the page when changing configuration