fix: validate asset id from deeplinks

[jeeanribeiro]

Summary

Deeplink's assetId already has a validation that checks for the account assets being held, but it needs a validation of format and this PR implements this solution

Changelog

- Creates validateAssetId function
- Adds validateAssetId function in handleDeepLinkSendConfirmationOperation

Testing

Platforms

• Desktop
  • MacOS
  • Linux
  • Windows
• Mobile
  • iOS
  • Android

Instructions

• Test deeplinks using developer tools:
• Should show asset id not valid error
  firefly-alpha://wallet/sendConfirmation?address=rms1qpwed3kpaju5rwe4nhplaj3ya6tujzvyuepypya4us95yf2rkp80u5ja230&amount=1&assetId=trololololo10
• Should show the asset is not known to this account error
  firefly-alpha://wallet/sendConfirmation?address=rms1qpwed3kpaju5rwe4nhplaj3ya6tujzvyuepypya4us95yf2rkp80u5ja230&amount=1&assetId=4218
• Should show the asset is not known to this account error
  firefly-alpha://wallet/sendConfirmation?address=rms1qpwed3kpaju5rwe4nhplaj3ya6tujzvyuepypya4us95yf2rkp80u5ja230&amount=1&assetId=0x08952e6fa7235d6a9f58b5e2e2ba2fd07bba7bc684dad5b47873d35e98fffe58a10100000000
• Should not show any error
  firefly-alpha://wallet/sendConfirmation?address=rms1qpwed3kpaju5rwe4nhplaj3ya6tujzvyuepypya4us95yf2rkp80u5ja230&amount=1&assetId=4219
• Should not show any error
  firefly-alpha://wallet/sendConfirmation?address=rms1qpwed3kpaju5rwe4nhplaj3ya6tujzvyuepypya4us95yf2rkp80u5ja230&amount=1
• Should not show any error
  firefly-alpha://wallet/sendConfirmation?address=rms1qpwed3kpaju5rwe4nhplaj3ya6tujzvyuepypya4us95yf2rkp80u5ja230&amount=1&assetId=<A_NATIVE_TOKEN_ID_THAT_THE_ACCOUNT_IS_HOLDING

Checklist

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or modified tests that prove my changes work as intended
• I have verified that new and existing unit tests pass locally with my changes
• I have verified that my latest changes pass CI workflows for testing and linting
• I have made corresponding changes to the documentation

[MarkNerdi996]

LGTM