GitLab Diff: Hide Renames, Shims & Noise

About

Big refactor merge requests bury the real changes under hundreds of low-signal
files — pure renames, re-export "shim" stubs, import-path churn, and comment
tweaks. This extension removes those from the GitLab MR file tree itself (not
just greyed out), so the diff stays readable.

Hide, with an independent toggle each:
• Pure renames — moved files with no content change
• Re-export shims — files whose body is only `export … from …`
• Import-only changes — files whose only changed lines are `import … from …`
• Comment-only changes — files whose only changed lines are comments

Everything runs locally against your existing GitLab session. No data is
collected, transmitted, or shared.

Notes:
• Works on classic GitLab diff pages. The beta "Rapid Diffs" view is not
  supported (the panel says so when it's active).
• Currently scoped to gitlab.com.