feat(ui): add excludeWallets to walletsListConfiguration

[hiendv]

This PR allows walletsListConfiguration to be customized with excludeWallets. It mainly serves the purpose of hiding unsupported or unwanted wallets when connecting.

Exclude wallets

Pass wallet names to be excluded from the wallets list. Passed names will be used to filter out any wallet to be hidden.

Since the filtering with excludeWallets is processed last when applying wallet configuration, it should take precedence over includeWallets.

tonConnectUI.uiOptions = {
    walletsListConfiguration: {
        excludeWallets: ['xtonwallet']
    }
}