Optimization of `lapce_ui::terminal::TerminalPanel::event`

[JustForFun88]

[codecov-commenter]

Codecov Report

Merging #1863 (a7233a5) into master (97d626d) will decrease coverage by 0.00%. The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master   #1863      +/-   ##
=========================================
- Coverage    8.49%   8.49%   -0.01%     
=========================================
  Files         130     130              
  Lines       56586   56589       +3     
=========================================
  Hits         4805    4805              
- Misses      51781   51784       +3     

Impacted Files	Coverage Δ
lapce-ui/src/terminal.rs	0.00% <0.00%> (ø)

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[JustForFun88]

@bugadani Ready for another review