[gnome-shell] sessionMode: Enable networkAgent on login screen

[Marge Bot <marge-bot src gnome org>]

commit 4440a8210b456923678facd434ef8a23d48f63b6
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Jun 10 23:12:27 2021 +0200

    sessionMode: Enable networkAgent on login screen
    
    We will soon enable the network sections in the status menu on the
    login screen, so enable the network agent to handle authentication
    requests (like wifi/VPN passwords).
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1874>

 js/ui/sessionMode.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/js/ui/sessionMode.js b/js/ui/sessionMode.js
index aa69fd1152..4d4fb2444c 100644
--- a/js/ui/sessionMode.js
+++ b/js/ui/sessionMode.js
@@ -47,7 +47,9 @@ const _modes = {
         isGreeter: true,
         isPrimary: true,
         unlockDialog: imports.gdm.loginDialog.LoginDialog,
-        components: ['polkitAgent'],
+        components: Config.HAVE_NETWORKMANAGER
+            ? ['networkAgent', 'polkitAgent']
+            : ['polkitAgent'],
         panel: {
             left: [],
             center: ['dateMenu'],