v4.22.0 release candidate (#1879)

* update app versions

* change default solana node

* update unspents more frequently to avoid unupdated state

* temporary fix for polygon sending issue

* change tron default node

cw_bitcoin/lib/electrum_wallet.dart

@@ -1099,6 +1099,7 @@ abstract class ElectrumWalletBase
         )..addListener((transaction) async {
             transactionHistory.addOne(transaction);
             await updateBalance();
+            await updateAllUnspents();
           });
       }
 
@@ -1191,6 +1192,7 @@ abstract class ElectrumWalletBase
               .removeWhere((utxo) => estimatedTx.utxos.any((e) => e.utxo.txHash == utxo.hash));
 
           await updateBalance();
+          await updateAllUnspents();
         });
     } catch (e) {
       throw e;
@@ -1796,6 +1798,7 @@ abstract class ElectrumWalletBase
           });
           transactionHistory.addOne(transaction);
           await updateBalance();
+          await updateAllUnspents();
         });
     } catch (e) {
       throw e;