fix(core): handle auto-conversion of utxo to dfi token

[lykalabrada]

What this PR does / why we need it:

Handle auto-conversion of UTXO into DFI token when user is sending to an EVM address, and has enough UTXO but not enough DFI token.

Which issue(s) does this PR fixes?:

Fixes DFC-363, DFC-353

Additional comments?:

Developer Checklist:

• [ ] Read your code changes at least once
• [ ] Tested on iOS/Android device (e.g, No crashes, library supported etc.)
• [ ] No console errors on web
• [ ] Tested on Light mode and Dark mode*
• [ ] Your UI implementation visually matched the rendered design*
• [ ] Unit tests*
• [ ] Added e2e tests*
• [ ] Added translations*

[linear[bot]]

DFC-363 Transfer Domain: Insufficient Balance error during send when there is sufficient balance

#### What happened? Insufficient Balance error during send from DFI to EVM DFI when there is sufficient tokens available #### What did you expect to happen? #### How to reproduce it (as minimally and precisely as possible): [Send_insufficient_balance.mp4](https://uploads.linear.app/ed7438a1-0dae-40df-9d75-9ba5b0ba89d2/846e8189-e2c9-4acc-b3a0-ccd280ac76a6/34fa1888-af86-4ec5-9098-6a648157cb0b) #### Anything else that the team needs to know?

[github-actions[bot]]

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[github-actions[bot]]

Build preview for DeFiChain Wallet is ready!

Built with commit 20a6860ec69c5dda0bb8e85a10dc325881e8c78c

https://expo.io/@defichain/wallet?release-channel=pr-preview-4082

[linear[bot]]

DFC-353 UI/UX Improvement: Transfer Domain DFI -> DFI EVM (Doesn’t auto convert balance DFI UTXO -> DFI)

Transfer Domain DFI -> DFI EVM (Doesn’t auto convert balance DFI UTXO -> DFI) * In my balance, I have combined 90 DFI token (50) + UTXO (40) * I can only transfer the 40 DFI Token -> DFI EVM as of now The UX improvement should be → The Convert screen display I have `89.90000000 DFI`so user doesn't have to worry that the DFI is in UTXO form