#3835 feat(desktop): indent workspaces under projects in v2 sidebar

Summary

• Adds left padding (pl-3 → pl-5) to the v2 sidebar workspace row so workspaces visually nest under their parent project.

Test plan

• Open the v2 desktop sidebar and confirm workspaces sit indented relative to the project header
• Confirm workspaces inside sections still look correct
• Confirm active/hover/drag styles still render correctly

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Summary by cubic

Indents workspace rows under their parent project in the v2 desktop sidebar by increasing left padding from pl-3 to pl-5 for clearer hierarchy.

Summary by CodeRabbit

• Style
  • Adjusted left padding in the dashboard sidebar's workspace section for improved visual spacing and layout alignment.