fix: reduce symbolic icon background opacity to 0

Some icons had an opacity of 0.012.

extra/scalable/devices/input-touchpad-symbolic.svg

@@ -1,6 +1,6 @@
 <svg width="17" height="16" viewBox="0 0 17 16" fill="none" xmlns="http://www.w3.org/2000/svg">
 <g clip-path="url(#clip0_515_3610)">
-<path d="M16.0029 0V16H0.00292969V0H16.0029Z" fill="#808080" fill-opacity="0.012"/>
+<path d="M16.0029 0V16H0.00292969V0H16.0029Z" fill="#808080" fill-opacity="0.00"/>
 <path d="M2.00293 2.004C0.89493 2.004 0.00292969 2.896 0.00292969 4.004V13.004C0.00292969 14.112 0.89493 15.004 2.00293 15.004H13.0029C14.1109 15.004 15.0029 14.112 15.0029 13.004V4.004C15.0029 2.896 14.1109 2.004 13.0029 2.004H2.00293ZM2.00293 4.004H13.0029V9.004H2.00293V4.004ZM3.00293 10.004H7.00293V13.004H3.00293C2.44893 13.004 2.00293 12.558 2.00293 12.004V11.004C2.00293 10.45 2.44893 10.004 3.00293 10.004ZM8.00293 10.004H12.0029C12.5569 10.004 13.0029 10.45 13.0029 11.004V12.004C13.0029 12.558 12.5569 13.004 12.0029 13.004H8.00293V10.004Z" fill="#232323"/>
 </g>
 <defs>

extra/scalable/devices/media-removable-symbolic.svg

@@ -2,7 +2,7 @@
 <g clip-path="url(#clip0_515_3615)">
 <path d="M6 1C4.892 1 4 1.892 4 3V10C4 11.108 4.892 12 6 12H10C11.108 12 12 11.108 12 10V3C12 1.892 11.108 1 10 1H6Z" fill="#232323"/>
 <path d="M5 13V15H11V13H5Z" fill="#232323"/>
-<path d="M0 0H16V16H0V0Z" fill="#808080" fill-opacity="0.012"/>
+<path d="M0 0H16V16H0V0Z" fill="#808080" fill-opacity="0.00"/>
 </g>
 <defs>
 <clipPath id="clip0_515_3615">

extra/scalable/devices/tablet-symbolic.svg

@@ -1,6 +1,6 @@
 <svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
 <g clip-path="url(#clip0_515_3628)">
-<path d="M0 0H16V16H0V0Z" fill="#808080" fill-opacity="0.012"/>
+<path d="M0 0H16V16H0V0Z" fill="#808080" fill-opacity="0.00"/>
 <path d="M3 1.00301C2 1.00301 2 2.00301 2 2.00301V14.003C2 15.003 3 15.003 3 15.003H13C13 15.003 14 15.003 14 14.003V2.00301C14 2.00301 14 1.00301 13 1.00301H3ZM3 2.007H13V12.007H3V2.007ZM7 13.007H9V14.007H7V13.007Z" fill="#232323"/>
 </g>
 <defs>