update ui and other frontend updates

frontend/src/lib/crypto.ts

@@ -0,0 +1,9 @@
+export async function sha256(input: string): Promise<string> {
+	const hash = await globalThis.crypto.subtle.digest(
+		'SHA-256',
+		new TextEncoder().encode(input),
+	);
+	return Array.from(new Uint8Array(hash))
+		.map((b) => b.toString(16).padStart(2, '0'))
+		.join('');
+}