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

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

![image](7f03ced4-67e2-41ce-b19f-a992823726bb)
- Also display member unit in the menu bar if there are no hidden
members in public org

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

![image](d749420b-554a-4483-8cd2-221df61b5ca7)
We will hidden the member board when doer is not the member of this org

![image](93bb782e-7d4d-4ad3-a096-133afbc51f8a)
Before:

![image](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](73d6dadc-0ef2-4ca9-8485-c5f4211bffb2)

---------

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

routers/web/org/home.go

@@ -120,31 +120,15 @@ func Home(ctx *context.Context) {
 
 	opts := &organization.FindOrgMembersOpts{
 		OrgID:       org.ID,
-		PublicOnly:  true,
+		PublicOnly:  ctx.Org.PublicMemberOnly,
 		ListOptions: db.ListOptions{Page: 1, PageSize: 25},
 	}
-
-	if ctx.Doer != nil {
-		isMember, err := org.IsOrgMember(ctx.Doer.ID)
-		if err != nil {
-			ctx.Error(http.StatusInternalServerError, "IsOrgMember")
-			return
-		}
-		opts.PublicOnly = !isMember && !ctx.Doer.IsAdmin
-	}
-
 	members, _, err := organization.FindOrgMembers(opts)
 	if err != nil {
 		ctx.ServerError("FindOrgMembers", err)
 		return
 	}
 
-	membersCount, err := organization.CountOrgMembers(opts)
-	if err != nil {
-		ctx.ServerError("CountOrgMembers", err)
-		return
-	}
-
 	var isFollowing bool
 	if ctx.Doer != nil {
 		isFollowing = user_model.IsFollowing(ctx.Doer.ID, ctx.ContextUser.ID)
@@ -152,7 +136,6 @@ func Home(ctx *context.Context) {
 
 	ctx.Data["Repos"] = repos
 	ctx.Data["Total"] = count
-	ctx.Data["MembersTotal"] = membersCount
 	ctx.Data["Members"] = members
 	ctx.Data["Teams"] = ctx.Org.Teams
 	ctx.Data["DisableNewPullMirrors"] = setting.Mirror.DisableNewPull
@@ -171,5 +154,7 @@ func Home(ctx *context.Context) {
 	ctx.Data["Page"] = pager
 	ctx.Data["ContextUser"] = ctx.ContextUser
 
+	ctx.Data["ShowMemberAndTeamTab"] = ctx.Org.IsMember || len(members) > 0
+
 	ctx.HTML(http.StatusOK, tplOrgHome)
 }