Format code snippets in docs

[jedel1043]

Uses cargo +nightly fmt -- --config=format_code_in_doc_comments=true --config=doc_comment_code_block_width=80 to format all docs with code blocks.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	95,574	95,574	0
Passed	75,181	75,181	0
Ignored	19,494	19,494	0
Failed	899	899	0
Panics	0	0	0
Conformance	78.66%	78.66%	0.00%

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (a23335b) 49.69% compared to head (f6d1da7) 49.69%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3317   +/-   ##
=======================================
  Coverage   49.69%   49.69%           
=======================================
  Files         443      443           
  Lines       43141    43141           
=======================================
  Hits        21439    21439           
  Misses      21702    21702           

Files	Coverage Δ
boa_ast/src/statement/switch.rs	100.00% <ø> (ø)
boa_cli/src/main.rs	0.61% <ø> (ø)
boa_engine/src/context/hooks.rs	58.06% <ø> (ø)
boa_engine/src/context/mod.rs	55.55% <ø> (ø)
boa_engine/src/error.rs	32.55% <ø> (ø)
boa_engine/src/job.rs	43.75% <ø> (ø)
boa_engine/src/lib.rs	73.33% <ø> (ø)
boa_engine/src/module/mod.rs	3.20% <ø> (ø)
boa_engine/src/object/builtins/jsdataview.rs	0.00% <ø> (ø)
boa_engine/src/object/builtins/jsdate.rs	0.00% <ø> (ø)
... and 12 more

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