Pubkey info of app_state.auth.accounts is separated in genesis

[zemyblue]

Summary

Pubkey info of app_state.auth.accounts is separated in genesis like below.
This is not the common style of cosmos-sdk, also not lbm-sdk style.
So it need to be fixed.
Maybe I think this changes is made from bumping up cosmos-sdk 0.45.x PR.

Current format

       {
          "@type": "/lbm.auth.v1.BaseAccount",
          "address": "link1tfcuj70ssvwnxv9ryk4p9xywyq626asgfktaxv",
          "ed25519_pub_key": null,
          "secp256k1_pub_key": null,
          "secp256r1_pub_key": null,
          "multisig_pub_key": null,
          "account_number": "0",
          "sequence": "0"
        }

Right format

      {
          "@type": "/lbm.auth.v1.BaseAccount",
          "address": "link1tfcuj70ssvwnxv9ryk4p9xywyq626asgfktaxv",
          "pub_key": {
            "type": 0,
            "key": null
          },
          "sequence": "0"
        }

Problem Definition

Proposal

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[zemyblue]

The auth of genesis is cosmos-sdk's common account structure. And this is difference with lbm-sdk's account structure. Since the structure of genesis is the structure that must be maintained for a long time, it is necessary to maintain the existing structure without changing it like lbm-sdk. So the account structure of genesis is in cosmos-sdk format, but we need to convert it to BaseAccount structure of lbm-sdk when lbm start.
https://github.com/line/lbm-sdk/blob/77651c44aa683a8e64fe71016631c743e82cf11f/x/auth/types/auth.pb.go#L34-L42

In the past, there was a part to convert. It seems to have been corrected with the commit 0cde898. It needs to be corrected again.