+ icon svg update

[evansmj]

This svg came from basak to use for the invoice rune creation plus sign. it should replace the Add.tsx svg.

<svg width="17" height="17" viewBox="0 0 17 17" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M1 8.5H16" stroke="#9F9F9F" stroke-width="1.3" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M8.5 1V16" stroke="#9F9F9F" stroke-width="1.3" stroke-linecap="round" stroke-linejoin="round"/>
</svg>