refactor: Simplify and strengthen code

Author: zatteo

packages/cozy-dataproxy-lib/src/components/Conversations/ChatAssistantItem.jsx

@@ -7,20 +7,14 @@ import { useI18n } from 'cozy-ui/transpiled/react/providers/I18n'
 import ChatItem from './ChatItem'
 import Sources from './Sources/Sources'
 
-const ChatAssistantItem = ({ className, id, label, sources, ...props }) => {
+const ChatAssistantItem = ({ id, sources, ...props }) => {
   const { t } = useI18n()
   // need memo to avoid rendering it everytime
   const icon = useMemo(() => <Icon icon={AssistantIcon} size={32} />, [])
 
   return (
     <>
-      <ChatItem
-        {...props}
-        className={className}
-        icon={icon}
-        name={t('assistant.name')}
-        label={label}
-      />
+      <ChatItem {...props} icon={icon} name={t('assistant.name')} />
       {sources?.length > 0 && <Sources messageId={id} sources={sources} />}
     </>
   )

packages/cozy-dataproxy-lib/src/components/Conversations/ChatConversation.jsx

@@ -31,7 +31,7 @@ const ChatConversation = ({ conversation, myself }) => {
 
   return (
     <div ref={listRef}>
-      {conversation?.messages.map((message, idx) => {
+      {conversation?.messages?.map((message, idx) => {
         if (message.role === 'user') {
           return (
             <ChatUserItem

packages/cozy-dataproxy-lib/src/components/ResultMenu/ResultMenuContent.jsx

@@ -16,14 +16,15 @@ import { useSearch } from '../Search/SearchProvider'
 const SearchResult = () => {
   const { isLoading, results, selectedIndex, searchValue } = useSearch()
 
-  if (isLoading && !results?.length)
+  if (isLoading && !results?.length) {
     return (
       <>
         <ListItemSkeleton hasSecondary />
         <ListItemSkeleton hasSecondary />
         <ListItemSkeleton hasSecondary />
       </>
     )
+  }
 
   return results.map((result, idx) => (
     <ResultMenuItem