Fix login view background color

Signed-off-by: dab246 <tdvu@linagora.com>
(cherry picked from commit e0d25fbd6be827048f249ffd236ce1718129515e)

core/lib/presentation/extensions/color_extension.dart

@@ -233,6 +233,7 @@ extension AppColor on Color {
   static const messageDialogHighlightColor = Color(0xFF37383A);
   static const labelColor = Color(0xFF71767C);
   static const thumbScrollbarColor = Color(0xFFC1C1C1);
+  static const loginViewShadowColor = Color(0x3DBCBCBC);
 
   static const mapGradientColor = [
     [Color(0xFF21D4FD), Color(0xFFB721FF)],

lib/features/login/presentation/login_view_web.dart

@@ -156,16 +156,25 @@ class LoginView extends BaseLoginView {
           ),
           Column(
             children: [
-              SizedBox(
-                height: 690,
-                width: 445,
-                child: Card(
+              Container(
+                height: 684,
+                width: 458,
+                padding: const EdgeInsets.symmetric(horizontal: 31),
+                clipBehavior: Clip.antiAlias,
+                decoration: const ShapeDecoration(
+                  color: Colors.white,
                   shape: RoundedRectangleBorder(
-                    borderRadius: BorderRadius.circular(20.0),
+                    borderRadius: BorderRadius.all(Radius.circular(20)),
+                  ),
+                  shadows: [
+                    BoxShadow(
+                      color: AppColor.loginViewShadowColor,
+                      blurRadius: 40,
+                      offset: Offset(0, 2),
+                      spreadRadius: 2,
+                    )
+                  ],
                 ),
-                  elevation: 10,
-                  child: Padding(
-                    padding: const EdgeInsets.only(left: 31, right: 31),
                 child: Column(
                   mainAxisAlignment: MainAxisAlignment.start,
                   crossAxisAlignment: CrossAxisAlignment.center,
@@ -200,8 +209,6 @@ class LoginView extends BaseLoginView {
                     ),
                   ],
                 )
-                  )
-                )
               ),
               Padding(
                 padding: const EdgeInsets.only(top: 44, bottom: 10),