Fix project counter in organization/individual profile (#28068) (#29361)

Fix #28052
Backport #28068 
Before:

![image](https://github.com/go-gitea/gitea/assets/18380374/5f299983-4b38-4d68-ac0e-4be3c62c0558)

![image](https://github.com/go-gitea/gitea/assets/18380374/f0e12afd-483b-4882-80e9-0261beb3fe0c)

After:

![image](https://github.com/go-gitea/gitea/assets/18380374/47cccb7b-bb35-4a7d-9c5b-83133be0323a)

![image](https://github.com/go-gitea/gitea/assets/18380374/77825c0c-4bf2-4762-83a2-1a5a173cc22d)

Co-authored-by: yp05327 <576951401@qq.com>

templates/org/menu.tmpl

@@ -9,6 +9,9 @@
 		{{if .CanReadProjects}}
 		<a class="{{if .PageIsViewProjects}}active {{end}}item" href="{{$.Org.HomeLink}}/-/projects">
 			{{svg "octicon-project-symlink"}} {{ctx.Locale.Tr "user.projects"}}
+			{{if .ProjectCount}}
+				<div class="ui small label">{{.ProjectCount}}</div>
+			{{end}}
 		</a>
 		{{end}}
 		{{if and .IsPackageEnabled .CanReadPackages}}

templates/user/overview/header.tmpl

@@ -13,6 +13,9 @@
 	{{if or .ContextUser.IsIndividual (and .ContextUser.IsOrganization .CanReadProjects)}}
 	<a href="{{.ContextUser.HomeLink}}/-/projects" class="{{if .PageIsViewProjects}}active {{end}}item">
 		{{svg "octicon-project-symlink"}} {{ctx.Locale.Tr "user.projects"}}
+		{{if .ProjectCount}}
+			<div class="ui small label">{{.ProjectCount}}</div>
+		{{end}}
 	</a>
 	{{end}}
 	{{if and .IsPackageEnabled (or .ContextUser.IsIndividual (and .ContextUser.IsOrganization .CanReadPackages))}}