Added icons, helperfunction and new fancy notice message

Added icons from webcrunch resp. heroicons
Added helperfunction to display inline svg with the plugin inline-svg
Implemented fancy notice message webcrunch. Realy nice but does only
work with javascript on.

app/assets/images/icons/outline/video-camera-slash.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" aria-hidden="true">
+  <path stroke-linecap="round" stroke-linejoin="round" d="M15.75 10.5l4.72-4.72a.75.75 0 011.28.53v11.38a.75.75 0 01-1.28.53l-4.72-4.72M12 18.75H4.5a2.25 2.25 0 01-2.25-2.25V9m12.841 9.091L16.5 19.5m-1.409-1.409c.407-.407.659-.97.659-1.591v-9a2.25 2.25 0 00-2.25-2.25h-9c-.621 0-1.184.252-1.591.659m12.182 12.182L2.909 5.909M1.5 4.5l1.409 1.409"/>
+</svg>