Add list-collapse icon (#1790)

* Add `list-collapse` icon

* Update icons/list-collapse.json

Co-authored-by: Karsa <contact@karsa.org>

---------

Co-authored-by: Karsa <contact@karsa.org>

icons/list-collapse.json

@@ -0,0 +1,24 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "ocavue"
+  ],
+  "tags": [
+    "items",
+    "collapse",
+    "expand",
+    "details",
+    "disclosure",
+    "show",
+    "hide",
+    "toggle",
+    "accordion",
+    "more",
+    "less",
+    "fold",
+    "unfold"
+  ],
+  "categories": [
+    "text"
+  ]
+}

icons/list-collapse.svg

@@ -0,0 +1,17 @@
+<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="m3 10 2.5-2.5L3 5" />
+  <path d="m3 19 2.5-2.5L3 14" />
+  <path d="M10 6h11" />
+  <path d="M10 12h11" />
+  <path d="M10 18h11" />
+</svg>