feat(icons): added square-sparkles icon (#3610)

* Added icons/square-sparkles.svg

* Added icons/square-sparkles.json

* apply design from @karsa-mistmere

* Add use-cases field to square-sparkles.json

* Add use cases for square sparkles icon

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

icons/square-sparkles.json

@@ -0,0 +1,24 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "colebemis",
+    "karsa-mistmere",
+    "ericfennis",
+    "nananecy"
+  ],
+  "use-cases": [
+    "Indicating AI-assisted image generation features",
+    "Representing generative AI image creation tools"
+  ],
+  "tags": [
+    "picture",
+    "photo",
+    "sparkles"
+  ],
+  "categories": [
+    "photography",
+    "text",
+    "multimedia",
+    "files"
+  ]
+}

icons/square-sparkles.svg

@@ -0,0 +1,16 @@
+<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="M11 15H7" />
+  <path d="M15.41 2.49a.6.6 0 011.18 0l.63 3.334a1.2 1.2 0 00.956.955l3.334.631a.6.6 0 010 1.18l-3.334.63a1.2 1.2 0 00-.955.956l-.631 3.334a.6.6 0 01-1.18 0l-.63-3.334a1.2 1.2 0 00-.956-.955L10.49 8.59a.6.6 0 010-1.18l3.334-.63a1.2 1.2 0 00.955-.956z" />
+  <path d="M21 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V5a2 2 0 012-2h6" />
+  <path d="M9 13v4" />
+</svg>