fix(web): suppress error in loading built-in plugin

[keiya01]

Overview

Re:Earth is logged out when built-in plugin load is failed. So I fixed to suppress the error.

What I've done

What I haven't done

How I tested

Which point I want you to review particularly

Memo

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[codecov]

Codecov Report

Merging #635 (7d95008) into main (42ad685) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #635      +/-   ##
==========================================
- Coverage   28.22%   28.22%   -0.01%     
==========================================
  Files        1474     1474              
  Lines      159997   160007      +10     
  Branches     3727     3727              
==========================================
  Hits        45155    45155              
- Misses     113686   113696      +10     
  Partials     1156     1156              

Flag	Coverage Δ
web	26.23% <0.00%> (-0.01%)	⬇️
web-beta	26.23% <0.00%> (-0.01%)	⬇️
web-classic	26.23% <0.00%> (-0.01%)	⬇️
web-utils	26.23% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
web/src/services/config/unsafeBuiltinPlugin.ts	50.00% <0.00%> (-13.89%)	⬇️