feat: add mono-styled anronicons

The color shading works fine with our system AppIcon as shown in the
gallery.

This premium (paid) icon-set will add more quality to our designsystem.

anronicons/duocolor/basic/heart-slash.svg

@@ -0,0 +1,4 @@
+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path opacity="0.4" d="M19.7977 15.0002C19.8662 14.9078 19.9337 14.8145 20.0001 14.7204C21.1765 13.052 22.0001 11.1176 22.0001 9.00014C22.0001 5.50016 19.0001 3.04357 16.0001 3.00016C14.5001 2.97845 13.0001 3.50018 12.0001 5.00017C11.0001 3.50018 9.47411 3.00016 8.00006 3.00016C7.83322 3.00016 7.66638 3.00789 7.50006 3.0231" stroke="#2F384C" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M2 2L4.3116 4.3116M21 21L17.5064 17.5064M17.5064 17.5064C15.093 19.7034 12.5092 21 12 21C11 21 2 16 2 8.99999C2 7.03227 2.94824 5.38062 4.3116 4.3116M17.5064 17.5064L4.3116 4.3116" stroke="#2F384C" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>