Show always repo count in header (#26842)

A few pages don't load the repo count of an user/org, so it is not shown
in the header. This happens mostly on org pages, but the package
settings applies to the user page as well.

Before:
![Screenshot 2023-08-31 at 12-45-36 Gitea Git with a cup of
tea](https://github.com/go-gitea/gitea/assets/15185051/14a59998-2cf9-4771-82f4-5d1d6fcb31f4)

After:

![grafik](https://github.com/go-gitea/gitea/assets/15185051/ff055aa0-7cde-49be-9522-437bf970be1d)


Seen on #26826
Regression of #25928

routers/web/user/setting/oauth2_common.go

@@ -12,6 +12,7 @@ import (
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
+	shared_user "code.gitea.io/gitea/routers/web/shared/user"
 	"code.gitea.io/gitea/services/forms"
 )
 
@@ -25,6 +26,15 @@ type OAuth2CommonHandlers struct {
 func (oa *OAuth2CommonHandlers) renderEditPage(ctx *context.Context) {
 	app := ctx.Data["App"].(*auth.OAuth2Application)
 	ctx.Data["FormActionPath"] = fmt.Sprintf("%s/%d", oa.BasePathEditPrefix, app.ID)
+
+	if ctx.ContextUser.IsOrganization() {
+		err := shared_user.LoadHeaderCount(ctx)
+		if err != nil {
+			ctx.ServerError("LoadHeaderCount", err)
+			return
+		}
+	}
+
 	ctx.HTML(http.StatusOK, oa.TplAppEdit)
 }