[stablecoin-issuance] file upload drag and drop. base64 validation of…

… uploaded file. (#14507)

![Screenshot 2024-12-19 at 8.20.16 PM.png](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/AMCzR6ldnuRamjbkxWC9/3e480e52-e20a-4715-a7ab-4fcbe6bf4596.png)

![Screenshot 2024-12-19 at 8.20.22 PM.png](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/AMCzR6ldnuRamjbkxWC9/2a2d4347-21f9-453c-865a-9e1cfa01d16b.png)

GitOrigin-RevId: f0034b434b32c745905db7a27ad6988368adf721

packages/ui/src/icons/CloudUpload.tsx

@@ -0,0 +1,13 @@
+export function CloudUpload() {
+  return (
+    <svg viewBox="0 0 48 49" fill="none" xmlns="http://www.w3.org/2000/svg">
+      <path
+        d="M24 38.5V24.5M24 24.5L29 29.5M24 24.5L19 29.5M16 38.5H14C8.47716 38.5 4 34.0228 4 28.5C4 23.4346 7.76632 19.2487 12.6514 18.5902C14.273 13.8824 18.7415 10.5 24 10.5C30.6274 10.5 36 15.8726 36 22.5C40.4182 22.5 44 26.0818 44 30.5C44 34.9182 40.4182 38.5 36 38.5H32"
+        stroke="currentColor"
+        strokeWidth="2"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+      />
+    </svg>
+  );
+}

packages/ui/src/icons/index.tsx

@@ -41,6 +41,7 @@ export { CircleCheckOutline } from "./CircleCheckOutline.js";
 export { CirclePlus } from "./CirclePlus.js";
 export { Clock } from "./Clock.js";
 export { Close } from "./Close.js";
+export { CloudUpload } from "./CloudUpload.js";
 export { Code } from "./Code.js";
 export { Contrast } from "./Contrast.js";
 export { Copy } from "./Copy.js";