Updated bitcoin slow transaction priority. Changed version to 4.1.6.

lib/bitcoin/bitcoin_transaction_priority.dart

@@ -32,7 +32,7 @@ class BitcoinTransactionPriority extends TransactionPriority {
 
     switch (this) {
       case BitcoinTransactionPriority.slow:
-        label = S.current.transaction_priority_slow;
+        label = '${S.current.transaction_priority_slow} ~24hrs';
         break;
       case BitcoinTransactionPriority.medium:
         label = S.current.transaction_priority_medium;

lib/bitcoin/electrum.dart

@@ -305,10 +305,15 @@ class ElectrumClient {
   Future<List<int>> feeRates() async {
     final topDoubleString = await estimatefee(p: 1);
     final middleDoubleString = await estimatefee(p: 20);
-    final bottomDoubleString = await estimatefee(p: 150);
-    final top = (stringDoubleToBitcoinAmount(topDoubleString.toString()) / 1000).round();
-    final middle = (stringDoubleToBitcoinAmount(middleDoubleString.toString()) / 1000).round();
-    final bottom = (stringDoubleToBitcoinAmount(bottomDoubleString.toString()) / 1000).round();
+    final bottomDoubleString = await estimatefee(p: 100);
+    final top = (stringDoubleToBitcoinAmount(topDoubleString.toString()) / 1000)
+        .round();
+    final middle =
+        (stringDoubleToBitcoinAmount(middleDoubleString.toString()) / 1000)
+            .round();
+    final bottom =
+        (stringDoubleToBitcoinAmount(bottomDoubleString.toString()) / 1000)
+            .round();
 
     return [bottom, middle, top];
   }

lib/store/app_store.dart

@@ -29,7 +29,7 @@ abstract class AppStoreBase with Store {
   NodeListStore nodeListStore;
 
   @action
-  void changeCurrentWallet(WalletBase wallet) {
+  void changeCurrentWallet(WalletBase<Balance> wallet) {
     this.wallet?.close();
     this.wallet = wallet;
   }