icons: Fix switch-off icon

It wasn't converted to paths and so wasn't rendered correctly.

gtk/icons/scalable/status/switch-off-symbolic.svg

@@ -1,63 +1 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
-
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="16"
-   height="16"
-   viewBox="0 0 16 16"
-   version="1.1"
-   id="svg8"
-   inkscape:version="0.92.4 5da689c313, 2019-01-14"
-   sodipodi:docname="off-symbolic.svg">
-  <defs
-     id="defs2" />
-  <sodipodi:namedview
-     id="base"
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1.0"
-     inkscape:pageopacity="0.0"
-     inkscape:pageshadow="2"
-     inkscape:zoom="31.678384"
-     inkscape:cx="10.258956"
-     inkscape:cy="9.9204611"
-     inkscape:document-units="px"
-     inkscape:current-layer="layer1"
-     showgrid="true"
-     units="px">
-    <inkscape:grid
-       type="xygrid"
-       id="grid815" />
-  </sodipodi:namedview>
-  <metadata
-     id="metadata5">
-    <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>
-  <g
-     inkscape:label="Layer 1"
-     inkscape:groupmode="layer"
-     id="layer1"
-     transform="translate(0,-292.76666)">
-    <circle
-       style="opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal"
-       id="path838"
-       cx="7.9791398"
-       cy="300.75595"
-       r="4.0169363" />
-  </g>
-</svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path style="color:#000;font-style:normal;font-variant:normal;font-weight:400;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-variant-east-asian:normal;font-feature-settings:normal;font-variation-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;shape-margin:0;inline-size:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000;solid-opacity:1;vector-effect:none;fill:#000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;paint-order:normal;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate;stop-color:#000;stop-opacity:1;opacity:1" d="M7.979 295.738c-2.76 0-5.016 2.259-5.016 5.018s2.257 5.017 5.016 5.017c2.758 0 5.017-2.258 5.017-5.017 0-2.76-2.259-5.018-5.017-5.018zm0 2a3.003 3.003 0 0 1 3.017 3.018 3.003 3.003 0 0 1-3.017 3.017 3.001 3.001 0 0 1-3.016-3.017 3.001 3.001 0 0 1 3.016-3.018z" transform="translate(0 -292.767)"/></svg>