feat: Combined layout for transactions

[infrmtcs]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 68.18182% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.76%. Comparing base (f208739) to head (ec27349).

Files with missing lines	Patch %	Lines
core/accessors.go	63.04%	7 Missing and 10 partials ⚠️
blockchain/blockchain.go	78.94%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##           dat/block-transactions    #3304      +/-   ##
==========================================================
+ Coverage                   75.60%   75.76%   +0.16%     
==========================================================
  Files                         352      352              
  Lines                       33350    33352       +2     
==========================================================
+ Hits                        25214    25270      +56     
+ Misses                       6338     6268      -70     
- Partials                     1798     1814      +16     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[rodrodros]

What's the reasoning behind b.Data[:end]? It looks similar to just passing b.Data.

[infrmtcs]

First half of the data is for transactions, second half is for receipts. We're utilizing end of data as the end for the last item, so for transactions case, we need to slice at the beginning of the first receipt