CW-802: Ethereum enhancements (#1826)

* fix: Ethereum enhancements around fees and computations relating to signing and sending transactions

* feat: Add nownodes key for evm to workflow

* feat: Reactivate send all on both eth and polygon wallet types

* fix: Add generic function for updating the node for a wallet type, move ethereum transaction error fees handler to a new file

* fix: Revert podfile.lock

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Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

cw_polygon/lib/polygon_client.dart

@@ -14,11 +14,19 @@ class PolygonClient extends EVMChainClient {
     required EtherAmount amount,
     EtherAmount? maxPriorityFeePerGas,
     Uint8List? data,
+    int? maxGas,
+    EtherAmount? gasPrice,
+    EtherAmount? maxFeePerGas,
   }) {
     return Transaction(
       from: from,
       to: to,
       value: amount,
+      data: data,
+      maxGas: maxGas,
+      gasPrice: gasPrice,
+      maxFeePerGas: maxFeePerGas,
+      maxPriorityFeePerGas: maxPriorityFeePerGas,
     );
   }