message: Use bech32 encoder from CosmJS
diff: -import { encodeSecp256k1Pubkey, makeCosmoshubPath, Secp256k1Pubkey } from "@cosmjs/amino";
  +import { encodeSecp256k1Pubkey, makeCosmoshubPath, pubkeyToAddress, Secp256k1Pubkey } from "@cosmjs/amino";
  import { HdPath, Secp256k1Signature } from "@cosmjs/crypto";
  import { fromUtf8 } from "@cosmjs/encoding";
  import { assert } from "@cosmjs/utils";
  @@ -115,7 +115,7 @@ export class LaunchpadLedger {
  public async getCosmosAddress(pubkey?: Uint8Array): Promise<string> {
  const pubkeyToUse = pubkey || (await this.getPubkey());
  - return CosmosApp.getBech32FromPK(this.prefix, Buffer.from(pubkeyToUse));
  + return pubkeyToAddress(encodeSecp256k1Pubkey(pubkeyToUse), this.prefix);
  }
  public async sign(message: Uint8Array, hdPath?: HdPath): Promise<Uint8Array> {
  