Improve Windows key image

The previous one didn't have sharp lines, or follow pixel boundaries
properly.

kasmweb/app/images/windows.svg

@@ -15,18 +15,18 @@
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    sodipodi:docname="windows.svg"
    inkscape:export-filename="/home/ossman/devel/noVNC/images/drag.png"
-   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   inkscape:version="0.92.4 (unknown)"
    x="0px"
    y="0px"
-   viewBox="-293 384 25 23"
+   viewBox="-293 384 25 25"
    xml:space="preserve"
    width="25"
-   height="23"><metadata
+   height="25"><metadata
    id="metadata21"><rdf:RDF><cc:Work
        rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
          rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
    id="defs19" /><sodipodi:namedview
-   pagecolor="#ffffff"
+   pagecolor="#959595"
    bordercolor="#666666"
    borderopacity="1"
    objecttolerance="10"
@@ -35,51 +35,31 @@
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    inkscape:pageshadow="2"
    inkscape:window-width="1920"
-   inkscape:window-height="1017"
+   inkscape:window-height="1136"
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-   showgrid="false"
-   inkscape:pagecheckerboard="true"
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-   inkscape:cx="-0.84745763"
-   inkscape:cy="12.5"
-   inkscape:window-x="2552"
-   inkscape:window-y="122"
+   showgrid="true"
+   inkscape:pagecheckerboard="false"
+   inkscape:zoom="32"
+   inkscape:cx="3.926913"
+   inkscape:cy="13.255959"
+   inkscape:window-x="1920"
+   inkscape:window-y="27"
    inkscape:window-maximized="1"
-   inkscape:current-layer="svg2" />
+   inkscape:current-layer="svg2"><inkscape:grid
+     type="xygrid"
+     id="grid818" /></sodipodi:namedview>
 <style
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    id="style2">
 	.st0{fill:#FFFFFF;}
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-</svg>
+
+<path
+   style="fill:#ffffff;fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1"
+   d="M 21 4 L 11 5.1757812 L 11 12 L 21 12 L 21 4 z M 10 5.2949219 L 4 6 L 4 12 L 10 12 L 10 5.2949219 z "
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+   id="path853" /><path
+   id="path858"
+   d="m -272,405 -10,-1.17578 V 397 h 10 z M -283,403.70508 -289,403 v -6 h 6 z"
+   style="fill:#ffffff;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+   inkscape:connector-curvature="0" /></svg>