Adding Custom Solana, Bitcoin, and TON Networks

import 'package:dynamic_sdk/dynamic_sdk.dart';

final solNetworks = [
  const GenericNetwork(
    blockExplorerUrls: ['https://explorer.solana.com'],
    chainId: 'solana:101',
    iconUrls: ['https://app.dynamic.xyz/assets/networks/sol.svg'],
    name: 'Solana Mainnet',
    nativeCurrency: NativeCurrency(
      decimals: 9,
      name: 'Sol',
      symbol: 'SOL',
    ),
    networkId: 101,
    rpcUrls: ['https://api.mainnet-beta.solana.com'],
    vanityName: 'Solana Mainnet',
  ),
  const GenericNetwork(
    blockExplorerUrls: ['https://explorer.solana.com/?cluster=devnet'],
    chainId: 'solana:103',
    iconUrls: ['https://app.dynamic.xyz/assets/networks/sol.svg'],
    name: 'Solana Devnet',
    nativeCurrency: NativeCurrency(
      decimals: 9,
      name: 'Sol',
      symbol: 'SOL',
    ),
    networkId: 103,
    rpcUrls: ['https://api.devnet.solana.com'],
    vanityName: 'Solana Devnet',
  ),
];

final bitcoinNetworks = [
  const GenericNetwork(
    blockExplorerUrls: ['https://mempool.space'],
    chainId: 'bip122:000000000019d6689c085ae165831e93',
    iconUrls: ['https://app.dynamic.xyz/assets/networks/btc.svg'],
    name: 'Bitcoin Mainnet',
    nativeCurrency: NativeCurrency(
      decimals: 8,
      name: 'Bitcoin',
      symbol: 'BTC',
    ),
    networkId: 0,
    rpcUrls: ['https://YOUR_BTC_RPC_URL'],
    vanityName: 'Bitcoin',
  ),
];

final tonNetworks = [
  const GenericNetwork(
    blockExplorerUrls: ['https://tonscan.org'],
    chainId: 'ton:-239',
    iconUrls: ['https://app.dynamic.xyz/assets/networks/ton.svg'],
    name: 'TON Mainnet',
    nativeCurrency: NativeCurrency(
      decimals: 9,
      name: 'Toncoin',
      symbol: 'TON',
    ),
    networkId: -239,
    rpcUrls: ['https://toncenter.com/api/v2/jsonRPC'],
    vanityName: 'TON Mainnet',
  ),
];

DynamicSDK.init(
  props: ClientProps(
    environmentId: 'REPLACE_WITH_YOUR_ENV_ID',
    appOrigin: 'https://your-app.com',
    solNetworks: solNetworks,
    bitcoinNetworks: bitcoinNetworks,
    tonNetworks: tonNetworks,
  ),
);