feat: Wallet events improvements

[marc2332]

Description of change

• Reorder wallet events (emit SigningTransaction before PreparedTransactionSigningHash, emit Broadcasting after signing the block)
• Add a new PreparedBlockSigningInput event
• Updated Nodejs and python bindings

Links to any relevant issues

Fixes #2054

Type of change

• Enhancement

How the change has been tested

Firefly and SDK tests

Change checklist

Tick the boxes that are relevant to your changes, and delete any items that are not.

• 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 made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
  • Update the tests accordingly
  • Avoid relying on TransactionSigningHash for the block signing hash
• I have checked that new and existing unit tests pass locally with my changes

[Thoralf-M]

Please also update python https://github.com/iotaledger/iota-sdk/blob/2.0/bindings/python/iota_sdk/types/event.py

[marc2332]

CI is failing but should be fixed by #2131

[thibault-martinez]

Thanks