Reformat transfers to a format the hardware wallet already supports.

[murisi]

Describe your changes

While splitting the Transfer structure into 4 case makes sense, hardware wallet support would be simpler to achieve if we left the formatting of the test vectors unchanged. This PR is depended upon by Zondax/ledger-namada#47 .

Indicate on which release or other PRs this topic is based on

Namada v0.39.0

Checklist before merging to draft

• I have added a changelog
• Git history is in acceptable state

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 83 lines in your changes missing coverage. Please review.

Project coverage is 53.89%. Comparing base (879a326) to head (2f27850).
Report is 4 commits behind head on main.

Files	Patch %	Lines
crates/sdk/src/signing.rs	0.00%	83 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3418      +/-   ##
==========================================
- Coverage   53.92%   53.89%   -0.03%     
==========================================
  Files         317      317              
  Lines      107575   107615      +40     
==========================================
- Hits        58011    58001      -10     
- Misses      49564    49614      +50     

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[tzemanovic]

thx for fixing this! Btw, if the rebuild of wasm_for_tests isn't necessary for this change, can we skip it? It makes merging easier as rerere is not very good with binary blobs

[brentstone]

What's the status here? Is it an issue that this wasn't included in 0.40.0 release? It was never tagged as ready for draft

[murisi]

What's the status here? Is it an issue that this wasn't included in 0.40.0 release? It was never tagged as ready for draft

This PR was made redundant by #3356 . Closing now, thanks.