Add head-widgets

internal/glance/glance.go

@@ -230,6 +230,20 @@ func (p *page) updateOutdatedWidgets() {
 	var wg sync.WaitGroup
 	context := context.Background()
 
+	for w := range p.HeadWidgets {
+		widget := p.HeadWidgets[w]
+
+		if !widget.requiresUpdate(&now) {
+			continue
+		}
+
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			widget.update(context)
+		}()
+	}
+
 	for c := range p.Columns {
 		for w := range p.Columns[c].Widgets {
 			widget := p.Columns[c].Widgets[w]