Fix ENS and UNS names not visible in UI

[xpaczka]

Issues connected

Resolves #823

What has been done

• Fixed ENS and UNS names not updated automatically (without reload)
• Added useCachedWalletName hook

Testing

• [x] Clear localStorage
• [x] Connect wallet
• [x] After a short interval, account name is automatically updated
• [x] Reload the page, the name is still visible

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