refactor: Expandable without fixed column should not sticky

[zombieJ]

ref ant-design/ant-design#22557

[codecov]

Codecov Report

Merging #450 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #450      +/-   ##
==========================================
+ Coverage   99.69%   99.69%   +<.01%     
==========================================
  Files          21       21              
  Lines         649      650       +1     
  Branches      184      185       +1     
==========================================
+ Hits          647      648       +1     
  Misses          2        2

Impacted Files	Coverage Δ
src/Body/index.tsx	100% <ø> (ø)	⬆️
src/context/BodyContext.tsx	100% <ø> (ø)	⬆️
src/Body/BodyRow.tsx	100% <ø> (ø)	⬆️
src/Body/ExpandedRow.tsx	100% <100%> (ø)	⬆️
src/Table.tsx	100% <100%> (ø)	⬆️

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