v5.3.0 Release Candidate (#2471)

* v5.3.0 Release Candidate

* update app versions [skip ci]

lib/core/node_switching_service.dart

@@ -17,7 +17,7 @@ class NodeSwitchingService {
 
   // The number of times we want to reset the overall used trusted nodes list.
   // We don't want an infinite loop if all trusted nodes are down.
-  static const int _usedTrustedNodeResetCount = 2;
+  static const int _usedTrustedNodeResetCount = 1;
 
   // State to manage the reset count
   int _resetCount = 0;

lib/src/screens/dashboard/sign_page.dart

@@ -147,7 +147,9 @@ class SignPage extends BasePage {
                   alertTitle: S.current.error,
                   alertContent: state.error,
                   buttonText: S.of(context).ok,
-                  buttonAction: () => Navigator.of(context).pop(),
+                  buttonAction: () {
+                    if (Navigator.canPop(context)) Navigator.of(context).pop();
+                  },
                 );
               });
         });