Add arrow-back icon

icons/arrow-back.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "danielbayley"
+  ],
+  "tags": [
+    "backwards",
+    "reverse",
+    "direction",
+    "undo"
+  ],
+  "categories": [
+    "arrows"
+  ]
+}

icons/arrow-back.svg

@@ -0,0 +1,14 @@
+<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"
+>
+  <path d="M9 14 4 9l5-5" />
+  <path d="M4 9h12a4 4 0 0 1 4 4v3a4 4 0 0 1-4 4H4" />
+</svg>