fix: prevent page broken when data is undefined

[mortalYoung]

简介

• 防止新建 tree 的时候由于没有 data 属性，导致页面崩溃

[codecov]

Codecov Report

Merging #361 (66426f7) into main (02da8bb) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #361   +/-   ##
=======================================
  Coverage   59.61%   59.61%           
=======================================
  Files         173      173           
  Lines        4635     4635           
  Branches     1021     1021           
=======================================
  Hits         2763     2763           
  Misses       1852     1852           
  Partials       20       20           

Impacted Files	Coverage Δ
src/workbench/sidebar/explore/editorTree.tsx	12.00% <ø> (ø)

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[wewoor]

+1