fix(community): fix saving of communities with no categories

Fixes #14472

src/app_service/service/community/dto/community.nim

@@ -503,13 +503,13 @@ proc parseCommunities*(response: JsonNode, categories: seq[Category]): seq[Commu
   for category in categories:
     categoryMap[category.id] = true
 
-  result = newSeq[CommunityDto]()
   for communityNode in response["result"].getElems():
     var community = communityNode.toCommunityDto()
+
     for category in community.categories.mitems:
       if categoryMap.hasKey(category.id):
         category.categoryOpened = true
-      result.add(community)
+    result.add(community)
 
 proc parseKnownCuratedCommunities(jsonCommunities: JsonNode): seq[CommunityDto] =
   for _, communityJson in jsonCommunities.pairs():

src/app_service/service/community/service.nim

@@ -423,11 +423,6 @@ QtObject:
           # but implement a solution for individual updates
           self.events.emit(SIGNAL_COMMUNITY_HISTORY_ARCHIVES_DOWNLOAD_FINISHED, CommunityIdArgs(communityId: receivedData.communityId))
 
-  proc findChatById(id: string, chats: seq[ChatDto]): ChatDto =
-    for chat in chats:
-      if(chat.id == id):
-        return chat
-
   proc findIndexById(id: string, chats: seq[ChatDto]): int =
     var idx = -1
     for chat in chats: