hotfix: disabled polkadot xcm temporally

[impelcrypto]

Pull Request Summary

• Hotfix: disabled polkadot xcm temporally
  • if you want to check on your end (ref)

Check list

• [ ] contains breaking changes
• [ ] adds new feature
• [x] modifies existing feature (bug fix or improvements)
• [ ] relies on other tasks
• [ ] documentation changes
• [ ] tested on mobile devices

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 90d7628):

https://astar-apps--pr1347-hotfix-disable-polka-ccxuzffw.web.app

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