[polari] chatView: Add non-breaking space before expaner arrows

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

commit a14098e478e635093ba1d3469ecd8a5db0c8b378
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Sep 2 22:13:51 2021 +0200

    chatView: Add non-breaking space before expaner arrows
    
    The group header looks too cramped without some whitespace.
    
    Part-of: <https://gitlab.gnome.org/GNOME/polari/-/merge_requests/224>

 src/chatView.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/chatView.js b/src/chatView.js
index eab68654..e39b491b 100644
--- a/src/chatView.js
+++ b/src/chatView.js
@@ -1132,7 +1132,7 @@ export default GObject.registerClass({
         let tags = [this._lookupTag('gap'), this._lookupTag('status'), headerTag];
         let headerText = stats.join(', ');
         let baseDir = Pango.find_base_dir(headerText, -1);
-        this._insertWithTags(iter, headerText, tags);
+        this._insertWithTags(iter, `${headerText}\u00A0`, tags);
         this._insertWithTags(iter,
             baseDir === Pango.Direction.LTR ? '\u25B6' : '\u25C0',
             tags.concat(headerArrowTag));