feat: support base64 icon on editor glyphMargin and treeview

[erha19]

Types

• 🎉 New Features

Background or solution

Bookmarks 插件在升级到 13.0+ 版本后，采用了 base64 图标，原有不支持导致新版本插件显示异常

支持前：

支持后：

Changelog

support base64 icon on editor glyphMargin and treeview

[codecov]

Codecov Report

Base: 57.45% // Head: 57.43% // Decreases project coverage by -0.02% ⚠️

Coverage data is based on head (cdf63d1) compared to base (1df4974).
Patch coverage: 30.76% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2010      +/-   ##
==========================================
- Coverage   57.45%   57.43%   -0.03%     
==========================================
  Files        1289     1289              
  Lines       80677    80716      +39     
  Branches    16877    16889      +12     
==========================================
+ Hits        46351    46356       +5     
- Misses      31206    31237      +31     
- Partials     3120     3123       +3     

Flag	Coverage Δ
jsdom	52.19% <30.76%> (-0.02%)	⬇️
node	15.86% <9.23%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
...re-browser/src/keyboard/keyboard-layout-service.ts	90.52% <ø> (ø)
...ion/src/browser/vscode/api/main.thread.treeview.ts	47.00% <0.00%> (-1.63%)	⬇️
...tension/src/hosted/api/vscode/ext.host.treeview.ts	57.14% <0.00%> (-0.31%)	⬇️
...ext/src/browser/contribution/terminal.lifecycle.ts	0.00% <0.00%> (ø)
...s/terminal-next/src/browser/terminal.controller.ts	31.85% <0.00%> (-0.68%)	⬇️
...ages/terminal-next/src/browser/terminal.restore.ts	0.00% <0.00%> (ø)
packages/terminal-next/src/common/controller.ts	100.00% <ø> (ø)
packages/theme/src/common/theme.service.ts	67.94% <ø> (ø)
packages/search/src/browser/search.service.ts	40.90% <31.25%> (-0.26%)	⬇️
...browser/src/menu/next/renderer/ctxmenu/electron.ts	21.15% <50.00%> (+0.76%)	⬆️
... and 6 more

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