Add feather-hash-symoblic.svg

gajim/data/icons/hicolor/scalable/devices/feather-hash-symbolic.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-hash"><line x1="4" y1="9" x2="20" y2="9"></line><line x1="4" y1="15" x2="20" y2="15"></line><line x1="10" y1="3" x2="8" y2="21"></line><line x1="16" y1="3" x2="14" y2="21"></line></svg>
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