Enhance UI button and order card features

Added fullWidth support to UiButton and updated usages to ensure buttons span container width. Improved ViewOrderCard with expanded worker details, avatar stack, formatted date/time, and an order edit bottom sheet. Introduced new icons and typography style in the design system.

apps/mobile/packages/features/client/authentication/lib/src/presentation/pages/client_get_started_page.dart

@@ -97,6 +97,7 @@ class ClientGetStartedPage extends StatelessWidget {
                             .get_started_page
                             .sign_in_button,
                         onPressed: () => Modular.to.pushClientSignIn(),
+                        fullWidth: true,
                       ),
 
                       const SizedBox(height: UiConstants.space3),
@@ -108,6 +109,7 @@ class ClientGetStartedPage extends StatelessWidget {
                             .get_started_page
                             .create_account_button,
                         onPressed: () => Modular.to.pushClientSignUp(),
+                        fullWidth: true,
                       ),
                     ],
                   ),

apps/mobile/packages/features/client/authentication/lib/src/presentation/widgets/client_sign_in_page/client_sign_in_form.dart

@@ -96,6 +96,7 @@ class _ClientSignInFormState extends State<ClientSignInForm> {
         UiButton.primary(
           text: widget.isLoading ? null : i18n.sign_in_button,
           onPressed: widget.isLoading ? null : _handleSubmit,
+          fullWidth: true,
           child: widget.isLoading
               ? const SizedBox(
                   height: 24,