Fix display problems of members and teams unit (#26363)

Fix:
- display member count and team count in the menu bar

![image](https://github.com/go-gitea/gitea/assets/18380374/7f03ced4-67e2-41ce-b19f-a992823726bb)
- Also display member unit in the menu bar if there are no hidden
members in public org

![image](https://github.com/go-gitea/gitea/assets/18380374/31422ad6-7190-438d-8e99-8a4af9cce908)
- hidden member board when there's no seeable members.
In this org, we only have hidden members: 

![image](https://github.com/go-gitea/gitea/assets/18380374/d749420b-554a-4483-8cd2-221df61b5ca7)
We will hidden the member board when doer is not the member of this org

![image](https://github.com/go-gitea/gitea/assets/18380374/93bb782e-7d4d-4ad3-a096-133afbc51f8a)
Before:

![image](https://github.com/go-gitea/gitea/assets/18380374/eafc0b3e-6218-42ab-a892-39645d08a5eb)
If you click the number in the members board, you will access the
members page, which is not expected.

![image](https://github.com/go-gitea/gitea/assets/18380374/73d6dadc-0ef2-4ca9-8485-c5f4211bffb2)

---------

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>

templates/org/menu.tmpl

@@ -21,13 +21,13 @@
 			{{svg "octicon-code"}} {{$.locale.Tr "org.code"}}
 		</a>
 		{{end}}
-		{{if .IsOrganizationMember}}
+		{{if .NumMembers}}
 			<a class="{{if $.PageIsOrgMembers}}active {{end}}item" href="{{$.OrgLink}}/members">
 				{{svg "octicon-person"}}&nbsp;{{$.locale.Tr "org.members"}}
-				{{if .NumMembers}}
-					<div class="ui small label">{{.NumMembers}}</div>
-				{{end}}
+				<div class="ui small label">{{.NumMembers}}</div>
 			</a>
+		{{end}}
+		{{if .IsOrganizationMember}}
 			<a class="{{if $.PageIsOrgTeams}}active {{end}}item" href="{{$.OrgLink}}/teams">
 				{{svg "octicon-people"}}&nbsp;{{$.locale.Tr "org.teams"}}
 				{{if .NumTeams}}