feat(Perplexity Node): Add missing dark theme icon (no-changelog) (#15939)

packages/nodes-base/nodes/Perplexity/perplexity.dark.svg

@@ -0,0 +1,35 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
+ width="270.000000pt" height="270.000000pt" viewBox="0 0 270.000000 270.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.14, written by Peter Selinger 2001-2017
+</metadata>
+<g transform="translate(0.000000,270.000000) scale(0.100000,-0.100000)"
+fill="#FFFFFF" stroke="none">
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+<path d="M780 1981 l0 -161 215 0 216 0 -203 151 c-112 84 -209 156 -215 162
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+<path d="M1706 1982 l-210 -157 209 -3 c114 -1 210 -1 212 1 2 2 2 74 1 160
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+<path d="M510 1370 l0 -330 70 0 70 0 0 88 0 88 38 35 c20 20 146 127 280 239
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+<path d="M1490 1696 c0 -2 126 -102 280 -223 l280 -218 0 -107 0 -108 70 0 70
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+<path d="M1028 1392 l-247 -217 0 -283 c-1 -233 1 -282 12 -275 8 4 122 104
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+<path d="M1410 1332 l0 -279 242 -214 c133 -118 247 -218 255 -222 11 -7 13
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+</g>
+</svg>