fix: resolve eslint indentation and attribute-order warnings

[andypalmi]

Summary

• Fixes 23 vue/html-indent warnings in SnapshotDiffChangePanel.vue
• Fixes 1 vue/attributes-order warning in KebabItem.vue

Closes #7229

Test plan

• Run npm run lint — should report no warnings

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.53%. Comparing base (a8aa55d) to head (071c83d).
⚠️ Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7230      +/-   ##
==========================================
- Coverage   76.57%   76.53%   -0.04%     
==========================================
  Files         405      405              
  Lines       20586    20586              
  Branches     4976     4976              
==========================================
- Hits        15764    15756       -8     
- Misses       4822     4830       +8     

Flag	Coverage Δ
backend	76.53% <ø> (-0.04%)	⬇️

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