goblin: bolder frameless home QR matching the pay header

Drop the tacky filled circle behind the home scan-to-pay QR. Render the
glyph larger and in the theme's foreground ink (white on the dark home
background), vertically centered next to the profile avatar, mirroring the
size and treatment the Pay header already uses. The scan action and target
are unchanged.

src/gui/views/goblin/mod.rs

@@ -978,28 +978,25 @@ impl GoblinWalletView {
 								ui,
 								&header_handle,
 								&header_hex,
-								36.0,
+								40.0,
 								header_tex.as_ref(),
 							)
 							.clicked()
 							{
 								self.tab = Tab::Me;
 							}
-							// Scan-to-pay, left of the avatar per the refs.
-							ui.add_space(10.0);
+							// Scan-to-pay, left of the avatar. No frame: a bold white QR
+							// glyph sized and centered to mirror the Pay-page header
+							// treatment next to the avatar (was a tacky filled circle).
+							ui.add_space(12.0);
 							let (rect, resp) =
-								ui.allocate_exact_size(Vec2::splat(36.0), Sense::click());
-							ui.painter().circle_filled(
-								rect.center(),
-								18.0,
-								theme::tokens().surface2,
-							);
+								ui.allocate_exact_size(Vec2::splat(44.0), Sense::click());
 							ui.painter().text(
 								rect.center(),
 								egui::Align2::CENTER_CENTER,
 								QR_CODE,
-								FontId::new(17.0, fonts::regular()),
-								theme::tokens().surface_text,
+								FontId::new(38.0, fonts::regular()),
+								theme::tokens().text,
 							);
 							let resp = resp.on_hover_cursor(egui::CursorIcon::PointingHand);
 							if resp.clicked() {