update signing icon && remove unused import

Author: AlaaElattar

app/lib/jrouter.dart

@@ -91,7 +91,7 @@ class JRouter {
           route: Route(
             path: '/sign',
             name: 'Sign',
-            icon: Icons.handshake,
+            icon: Icons.draw_sharp,
             view: await Sign().widget(),
           ),
           app: Sign()),

app/lib/screens/registered_screen.dart

@@ -98,7 +98,7 @@ class _RegisteredScreenState extends State<RegisteredScreen>
                         icon: Icons.how_to_vote_outlined,
                         pageNumber: 4),
                     HomeCardWidget(
-                        name: 'Sign', icon: Icons.handshake, pageNumber: 8),
+                        name: 'Sign', icon: Icons.draw_sharp, pageNumber: 8),
                   ],
                 ),
                 const Row(

app/lib/screens/signing/sign_with_link.dart

@@ -4,7 +4,6 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:threebotlogin/helpers/logger.dart';
 import 'package:threebotlogin/providers/wallets_provider.dart';
 import 'package:threebotlogin/screens/signing/signing_mixin.dart';
-import 'package:threebotlogin/services/signing_service.dart';
 import 'package:threebotlogin/widgets/custom_dialog.dart';
 import 'package:http/http.dart' as http;
 

app/lib/widgets/layout_drawer.dart

@@ -157,7 +157,7 @@ class _LayoutDrawerState extends State<LayoutDrawer> {
                 minLeadingWidth: 10,
                 leading: const Padding(
                     padding: EdgeInsets.only(left: 10),
-                    child: Icon(Icons.handshake, size: 18)),
+                    child: Icon(Icons.draw_sharp, size: 18)),
                 title: const Text('Sign'),
                 onTap: () {
                   Navigator.pop(context);