add desktop/mobile/tablet badges to events log

app/views/icons/_device_tablet.html.erb

@@ -0,0 +1,5 @@
+<svg class="<%= local_assigns[:class] %>" 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">
+  <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+  <path d="M5 4a1 1 0 0 1 1 -1h12a1 1 0 0 1 1 1v16a1 1 0 0 1 -1 1h-12a1 1 0 0 1 -1 -1v-16z" />
+  <path d="M11 17a1 1 0 1 0 2 0a1 1 0 0 0 -2 0" />
+</svg>