feat: Add `x-octagon` icon

icons/x-octagon.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"
+>
+  <polygon points="7.86 2 16.14 2 22 7.86 22 16.14 16.14 22 7.86 22 2 16.14 2 7.86 7.86 2" />
+  <line x1="15" y1="9" x2="9" y2="15" />
+  <line x1="9" y1="9" x2="15" y2="15" />
+</svg>

src/tags.json

@@ -157,6 +157,7 @@
   "watch": ["clock", "time"],
   "wind": ["weather", "air"],
   "x-circle": ["cancel", "close", "delete", "remove", "times"],
+  "x-octagon": ["delete", "stop", "alert", "warning", "times"],
   "x-square": ["cancel", "close", "delete", "remove", "times"],
   "x": ["cancel", "close", "delete", "remove", "times"],
   "youtube": ["logo", "video", "play"],