#3613: fix response serialization for HTTP bricks

[twschiller]

What does this PR do?

• Part of RTK errors lose cause (the page editor HTTP error log is broken) #3613
• Fixes response/request serialization

Discussion

• serializeError doesn't seem to handle Axios errors in the cause well at all on Chrome. (Was having problems replicating on node/in tests)

Checklist

• Add tests
• Designate a primary reviewer: @fregante

[codecov-commenter]

Codecov Report

Merging #3667 (0f18d22) into main (acefed0) will increase coverage by 0.02%.
The diff coverage is 95.00%.

@@            Coverage Diff             @@
##             main    #3667      +/-   ##
==========================================
+ Coverage   45.59%   45.61%   +0.02%     
==========================================
  Files         816      816              
  Lines       24391    24407      +16     
  Branches     5138     5141       +3     
==========================================
+ Hits        11120    11134      +14     
- Misses      12354    12356       +2     
  Partials      917      917              

Impacted Files	Coverage Δ
src/background/requests.ts	82.45% <95.00%> (+1.84%)	⬆️
src/pageEditor/hooks/useExtensionTrace.ts	79.31% <0.00%> (-3.45%)	⬇️

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