Update app/lib/screens/signing/signing.dart

Co-authored-by: AhmedHanafy725 <41957921+AhmedHanafy725@users.noreply.github.com>

Author: AlaaElattar

app/lib/screens/signing/signing.dart

@@ -67,7 +67,7 @@ class _SigningState extends State<Signing> {
           const SizedBox(height: 24),
           _buildSignButton(
             icon: Icons.text_fields,
-            label: 'Sign with Text',
+            label: 'Sign Text',
             onPressed: () {
               Navigator.push(
                 context,