Update icons, README. Add zh-CN locale

resources/icons/app.svg

@@ -1,19 +1,30 @@
-<svg width="64" height="64" xmlns="http://www.w3.org/2000/svg">
- <defs>
-  <filter id="svg_10_blur">
-   <feGaussianBlur stdDeviation="0" in="SourceGraphic"/>
-  </filter>
- </defs>
- <g>
-  <title>background</title>
-  <rect fill="none" id="canvas_background" height="402" width="582" y="-1" x="-1"/>
- </g>
- <g>
-  <title>Layer 1</title>
-  <g stroke="null" id="svg_19">
-   <path stroke="null" opacity="0.2" id="svg_5" fill="#231F20" d="m58.941458,5.713441c-0.033833,0 -0.067666,0 -0.103037,0c-0.030757,0 -0.056901,-0.003076 -0.087658,0l-23.846159,0c-0.579776,0.026144 -1.900803,0.933485 -2.071506,1.104188l-27.895362,27.904589c-1.479428,1.479428 -1.479428,3.878499 0,5.357927l21.41633,21.425557c0.744327,0.739714 1.711645,1.107264 2.678964,1.107264c0.967318,0 1.937712,-0.36755 2.677426,-1.107264l27.893824,-27.904589c0.170703,-0.170703 1.122643,-1.342558 1.122643,-2.071506l0,-23.933817c0.053825,-1.058052 -0.747403,-1.882349 -1.785463,-1.882349zm-5.900794,10.763528c-1.697805,0 -3.075733,-1.377928 -3.075733,-3.075733s1.377928,-3.075733 3.075733,-3.075733s3.075733,1.377928 3.075733,3.075733s-1.377928,3.075733 -3.075733,3.075733z"/>
-   <path stroke="#00bf00" id="svg_8" fill="#2e6fd1" d="m58.941458,2.637708c-0.033833,0 -0.067666,0 -0.103037,0c-0.030757,0 -0.056901,-0.003076 -0.087658,0l-23.846159,0c-0.579776,0.026144 -1.900803,0.933485 -2.071506,1.104188l-27.895362,27.904589c-1.479428,1.479428 -1.479428,3.878499 0,5.357927l21.41633,21.425557c0.744327,0.739714 1.711645,1.107264 2.678964,1.107264c0.967318,0 1.937712,-0.36755 2.677426,-1.107264l27.893824,-27.904589c0.170703,-0.170703 1.122643,-1.342558 1.122643,-2.071506l0,-23.933817c0.053825,-1.058052 -0.747403,-1.882349 -1.785463,-1.882349zm-5.900794,10.763528c-1.697805,0 -3.075733,-1.377928 -3.075733,-3.075733s1.377928,-3.075733 3.075733,-3.075733s3.075733,1.377928 3.075733,3.075733s-1.377928,3.075733 -3.075733,3.075733z"/>
-   <text filter="url(#svg_10_blur)" stroke="#000000" transform="matrix(0.5447929800652447,-0.5343019017094763,0.5343019017094763,0.5447929800652447,-3.424396520826477,36.238999138928264) " font-weight="bold" xml:space="preserve" text-anchor="start" font-family="Oswald, sans-serif" font-size="24" id="svg_10" y="36.27526" x="14.460123" stroke-width="0" fill="#ffffff">VOC</text>
-  </g>
- </g>
-</svg>
+<?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="256.000000pt" height="256.000000pt" viewBox="0 0 256.000000 256.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.15, written by Peter Selinger 2001-2017
+</metadata>
+<g transform="translate(0.000000,256.000000) scale(0.100000,-0.100000)"
+fill="#000000" stroke="none">
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+</svg>