fix(messages): minor render enhancements

- assign `viewId` on Options API initialising: chatIdentifier is no longer updated at `mounted()` - no cancelled requests
-  don't check system messages for parents: weird, but for federated conversations system conversations `getContext` at the moment response is processed, doesn't contain message parent - false check - system message is rendered as-is

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

src/components/MessagesList/MessagesList.vue

@@ -144,7 +144,7 @@ export default {
 			 */
 			messagesGroupedByDateByAuthor: {},
 
-			viewId: null,
+			viewId: uniqueId('messagesList'),
 
 			/**
 			 * When scrolling to the top of the div .scroller we start loading previous
@@ -316,7 +316,6 @@ export default {
 		this.debounceUpdateReadMarkerPosition = debounce(this.updateReadMarkerPosition, 1000)
 		this.debounceHandleScroll = debounce(this.handleScroll, 50)
 
-		this.viewId = uniqueId('messagesList')
 		this.scrollToBottom()
 		EventBus.$on('scroll-chat-to-bottom', this.handleScrollChatToBottomEvent)
 		EventBus.$on('smooth-scroll-chat-to-bottom', this.smoothScrollToBottom)

src/store/messagesStore.js

@@ -529,15 +529,14 @@ const actions = {
 	processMessage(context, { token, message }) {
 		const sharedItemsStore = useSharedItemsStore()
 
-		if (message.parent && message.systemMessage
-			&& (message.systemMessage === 'message_deleted'
+		if (message.systemMessage === 'message_deleted'
 				|| message.systemMessage === 'reaction'
 				|| message.systemMessage === 'reaction_deleted'
 				|| message.systemMessage === 'reaction_revoked'
-				|| message.systemMessage === 'message_edited')) {
+				|| message.systemMessage === 'message_edited') {
 			// If parent message is presented in store and is different, we update it
 			const parentInStore = context.getters.message(token, message.parent.id)
-			if (Object.keys(parentInStore).length !== 0 && JSON.stringify(parentInStore) !== JSON.stringify(message.parent)) {
+			if (Object.keys(parentInStore).length !== 0 && message.parent && JSON.stringify(parentInStore) !== JSON.stringify(message.parent)) {
 				context.commit('addMessage', { token, message: message.parent })
 			}