Update credits link for artist Seiryuuden (#2306)

Author: CarlosGuzman01

play.pokemonshowdown.com/js/storage.js

@@ -107,7 +107,7 @@ Storage.bg = {
 				break;
 			case 'charizards':
 				hues = ["37.159090909090914,74.57627118644066%", "10.874999999999998,70.79646017699115%", "179.51612903225808,52.10084033613446%", "20.833333333333336,36.73469387755102%", "192.3076923076923,80.41237113402063%", "210,29.629629629629633%"];
-				attrib = '<a href="https://seiryuuden.deviantart.com/art/The-Ultimate-Mega-Showdown-Charizards-414587079" target="_blank" class="subtle">"Charizards" <small>background by Jessica Valencia</small></a>';
+				attrib = '<a href="https://lit.link/en/seiryuuden" target="_blank" class="subtle">"Charizards" <small>background by Jessica Valencia</small></a>';
 				break;
 			case 'psday':
 				hues = ["24.705882352941174,25.37313432835821%", "260.4651162790697,59.44700460829492%", "165.3191489361702,46.07843137254901%", "16.363636363636367,42.63565891472869%", "259.04761904761904,34.05405405405405%", "24.705882352941174,25.37313432835821%"];

play.pokemonshowdown.com/src/client-core.ts

@@ -303,7 +303,7 @@ const PSBackground = new class extends PSStreamModel {
 				"210,29.629629629629633%",
 			];
 			attrib = {
-				url: 'https://seiryuuden.deviantart.com/art/The-Ultimate-Mega-Showdown-Charizards-414587079',
+				url: 'https://lit.link/en/seiryuuden',
 				title: 'Charizards',
 				artist: 'Jessica Valencia',
 			};

pokemonshowdown.com/credits.php

@@ -129,7 +129,7 @@
 
 			<ul>
 				<li><p><a href="http://cargocollective.com/bluep" target="_blank" class="subtle"><strong>Daniel Kong</strong></a> <small>&ndash; Art (Shaymin background)</small></p></li>
-				<li><p><a href="http://seiryuuden.deviantart.com/" target="_blank" class="subtle"><strong>Jessica Valencia</strong> [seiryuuden]</a> <small>&ndash; Art (Charizards background)</small></p></li>
+				<li><p><a href="https://lit.link/en/seiryuuden" target="_blank" class="subtle"><strong>Jessica Valencia</strong> [seiryuuden]</a> <small>&ndash; Art (Charizards background)</small></p></li>
 				<li><p><a href="http://kyle-dove.deviantart.com/" target="_blank" class="subtle"><strong>Kyle Dove</strong></a> <small>&ndash; Art (battle backdrops)</small></p></li>
 				<li><p><a href="http://vtas.deviantart.com/" target="_blank" class="subtle"><strong>Vivian Zou</strong> [Vtas]</a> <small>&ndash; Art (Horizon background)</small></p></li>
 				<li><p><strong>Samuel Teo</strong> [Yilx] <small>&ndash; Art (Waterfall background)</small></p></li>