add goatcounter icon

src/drivers/webextension/images/icons/goatcounter.svg

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg width="100%" height="100%" viewBox="0 0 417 429" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:1.5;"><rect id="Artboard4" x="0.586" y="0" width="415.356" height="428.505" style="fill:none;"/><clipPath id="_clip1"><rect x="0.586" y="0" width="415.356" height="428.505"/></clipPath><g clip-path="url(#_clip1)"><path d="M25.399,235.075l118.517,-135.285c0,0 -124.734,-57.004 -120.995,-58.98c182.412,-96.381 370.769,214.033 370.769,214.033l-24.839,65.501c0,0 -169.954,-0.509 -192.464,-75.727" style="fill:none;stroke:#9a15a4;stroke-width:44.5px;"/><path d="M179.11,406.252c-0.044,-36.273 38.389,-117.225 38.389,-117.225" style="fill:none;stroke:#9a15a4;stroke-width:44.5px;"/></g></svg>