Paint background of Text object before string.

firmware/application/ais_app.cpp

@@ -299,6 +299,7 @@ void AISRecentEntryDetailView::set_entry(const AISRecentEntry& entry) {
 
 AISAppView::AISAppView(NavigationView&) {
 	add_children({ {
+		&label_app_name,
 		&label_channel,
 		&options_channel,
 		&recent_entries_view,

firmware/common/ui_widget.cpp

@@ -291,9 +291,14 @@ void Text::set(const std::string value) {
 }
 
 void Text::paint(Painter& painter) {
+	const auto rect = screen_rect();
+	const auto s = style();
+
+	painter.fill_rectangle(rect, s.background);
+
 	painter.draw_string(
-		screen_pos(),
-		style(),
+		rect.pos,
+		s,
 		text
 	);
 }