fix: Account Unification errors

[impelcrypto]

Pull Request Summary

• fix: displaying account icon
• fix: use unified account
  • map to proper SS58 address for EVM dApp staking
  • map to proper H160 address for sending assets from EVM to Native(unified)

Check list

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

This pull request makes the following changes:

Fixes

• fix: displaying account icon

=Before=

• Not unified account but isUnifiedAccount was true
  

• This is unified account but AuIcon component was not imported
  

=After=

Changes

• removed getSS58Address function from useAccount hooks and use getMappedNativeAddress from AccountUnificationService

[github-actions]

Visit the preview URL for this PR (updated for commit a7d692b):

https://astar-apps--pr1003-fix-send-evm-assets-7uncl4ai.web.app

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[gluneau]

Well done.

[Kahonnohak]

Checked if account is not unified, portal doesn't allow transactions to happen

Checked if account is unified
Sent ERC20 to native address and received the token in unified account.

[Kahonnohak]

LGTM