Cw 470 additional theming fixes (#1052)

* fix: revert theme order (bright-purple as default)

* fix: missing card borders

* fix: high contrast gradients (send/exchange)

* fix: contact list page

* feat: add picker search border and change high contrast search fill

* fix: balance page txts

* fix: accounts_subaddresses button

* fix: exchange page buttons

* Revert "fix: revert theme order (bright-purple as default)"

This reverts commit 8e13b2241c.

* fix: themetype enum

* feat: add localized strings to backup dialog

* fix: onramper flow

lib/entities/main_actions.dart

@@ -49,7 +49,7 @@ class MainActions {
         case WalletType.ethereum:
         case WalletType.monero:
           if (viewModel.isEnabledBuyAction) {
-            final uri = getIt.get<OnRamperBuyProvider>().requestUrl();
+            final uri = getIt.get<OnRamperBuyProvider>().requestUrl(context);
             if (DeviceInfo.instance.isMobile) {
               Navigator.of(context)
                   .pushNamed(Routes.webViewPage, arguments: [S.of(context).buy, uri]);