Add DOT + Statemine USDT

[josietyleung]

Description

Checklist

Adding Assets

If adding a new asset, please ensure the following:

• Asset is registered to the Cosmos Chain Registry.

• Add asset to bottom of zone_assets.json.

  Note:

  • The IBC channel referenced in path must be registered to the Chain Registry.
  • osmosis_main defaults to false (or else cite the listing rule that justifies enlisting to the Main app)

Validation Testing

If adding or updating a chain or asset, the changes must be validated from the updated build of the Osmosis Frontend. Please specify who shall validate:

• Osmosis assetlists repo maintainers are to validate--testers will need a small amount of tokens to validate. In which case:
  • Validaters can buy a small amount of this asset from Pool ID: 1058.

OTHERWISE

• Submitting team are to validate--a preview link is requested in the comments of this PR. The submitting team will provide evidence of success of the Deposit and Withdraw functions from the Preview Frontend. (screenshot + tx url)

On-chain liquidity

If adding a new asset, please provide the plan for on-chain liquidity of the asset: (choose one)

• The submitting team will ensure a pool will be created soon. Please hold off until further communication, which will notify of the Pool ID. (Please set the PR's status to Draft until the pool has been created)

OR

• A preview link is requested for the submitting team to be able to create a pool using the Osmosis Frontend.

OR

• The token is, or will be, going through a StreamSwap stream; thus, the token should be listed without requiring on-chain liquidity. A Pool ID will be provided in this PR following the stream's completion once the team has had a chance to create a pool using the earned funds.