feat: optimize the interaction of MenuBar in horizontal mode

[kiwiwong]

Description

Optimize the interaction of MenuBar in horizontal mode

Fixes #625

Changes

• For the MenuBar in horizontal mode, extract the HorizontalView component.
• Change the interaction of MenuBar in horizontal mode to be similar to VSCode.
• Add unit test code.

[codecov]

Codecov Report

Merging #636 (bcd1e59) into main (d45a807) will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #636      +/-   ##
==========================================
+ Coverage   89.02%   89.09%   +0.07%     
==========================================
  Files         184      185       +1     
  Lines        5412     5447      +35     
  Branches     1222     1229       +7     
==========================================
+ Hits         4818     4853      +35     
  Misses        586      586              
  Partials        8        8              

Impacted Files	Coverage Δ
src/workbench/menuBar/menuBar.tsx	96.96% <ø> (-0.65%)	⬇️
src/workbench/menuBar/horizontalView.tsx	100.00% <100.00%> (ø)

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[wewoor]

+1