feat(ui): the send celebration throws WOW and XMR, not only bitcoin

The "transaction sent" animation erupted #, $ and ₿ out of the money sack. A
Wownero-first wallet that celebrates every send by throwing somebody else's
coin is advertising for them on the one screen a user reaches directly after
parting with their own money.

Adds Monero and Wownero glyphs and re-spaces the stagger across ten particles
so the fan stays even. WOW leads and is the largest, because that is the coin
this wallet is for.

The sprites are rendered at 128px from res/pictures/crypto_full_icons, which is
the same artwork the chain icons elsewhere in the app use, so the bag throws
the coins the rest of the UI draws rather than a second opinion about what they
look like. 128x128 RGBA to match the three that were already there.

lib/src/widgets/hash_bag_success_animation.dart

@@ -1,11 +1,19 @@
 import 'package:flutter/material.dart';
 
 /// "Transaction sent" celebration: the Hash Bags money sack sits at the bottom
-/// and money glyphs (#, $, ₿) erupt from its mouth, rising and fading on a loop.
+/// and money glyphs erupt from its mouth, rising and fading on a loop.
 ///
 /// The glyphs are image assets (not text) because the app doesn't bundle a font
 /// containing a bitcoin glyph — rendering them as PNGs keeps them consistent
 /// across platforms.
+///
+/// The chain glyphs are Monero and Wownero as well as Bitcoin. A Wownero-first
+/// wallet that celebrates every send by throwing only bitcoin out of the bag is
+/// advertising somebody else's coin on the one screen a user reaches after
+/// parting with their own. The XMR and WOW sprites are rendered at 128px from
+/// res/pictures/crypto_full_icons/{monero,wownero}.svg, which is the same
+/// artwork the chain icons elsewhere in the app use, so they match rather than
+/// being a second opinion about what those coins look like.
 class HashBagSuccessAnimation extends StatefulWidget {
   const HashBagSuccessAnimation({super.key});
 
@@ -28,15 +36,23 @@ class _HashBagSuccessAnimationState extends State<HashBagSuccessAnimation>
   static const String _hash = 'assets/images/hashbag_sym_hash.png';
   static const String _dollar = 'assets/images/hashbag_sym_dollar.png';
   static const String _btc = 'assets/images/hashbag_sym_btc.png';
+  static const String _xmr = 'assets/images/hashbag_sym_xmr.png';
+  static const String _wow = 'assets/images/hashbag_sym_wow.png';
 
+  // Ordered by phase, so the stagger stays even as glyphs are added. WOW leads
+  // and is the largest: this wallet is Wownero-first and the animation should
+  // say so before it says anything else.
   static const List<_Particle> _particles = <_Particle>[
-    _Particle(_btc, 0.00, 0.00, 0.20),
-    _Particle(_hash, -0.18, 0.13, 0.16),
-    _Particle(_dollar, 0.19, 0.24, 0.16),
-    _Particle(_hash, 0.11, 0.40, 0.12),
-    _Particle(_dollar, -0.13, 0.54, 0.11),
-    _Particle(_btc, 0.06, 0.68, 0.12),
-    _Particle(_hash, -0.07, 0.83, 0.10),
+    _Particle(_wow, 0.00, 0.00, 0.20),
+    _Particle(_hash, -0.18, 0.10, 0.16),
+    _Particle(_xmr, 0.19, 0.20, 0.18),
+    _Particle(_dollar, -0.09, 0.30, 0.14),
+    _Particle(_btc, 0.13, 0.40, 0.16),
+    _Particle(_hash, 0.11, 0.50, 0.12),
+    _Particle(_wow, -0.16, 0.60, 0.13),
+    _Particle(_dollar, 0.06, 0.70, 0.11),
+    _Particle(_xmr, -0.05, 0.80, 0.12),
+    _Particle(_btc, 0.16, 0.90, 0.11),
   ];
 
   @override