fix: prioritize path truncation in changes sidebar

[jschwxrz]

• adjusts changes sidebar file row layout so the directory path truncates before the filename
• keeps the path directly next to the filename when there is enough horizontal space
• allows the filename to truncate only once the path has collapsed under tight space

[greptile-apps]

Greptile Summary

This PR adjusts the Tailwind flex layout of ChangesListItem so that the directory path collapses before the filename when the changes sidebar is narrow.

• The outer left-side div gains flex-1 so it fills all space left by the right-side controls, and the filename/directory pair is wrapped in a new inner flex min-w-0 flex-1 span.
• The filename span is marked shrink-0 (never shrinks via the flex algorithm) while max-w-full caps it at the parent width, giving truncate a natural trigger; the directory span is shrink with min-w-0, so it collapses first under space pressure.

Confidence Score: 5/5

Safe to merge — the change is purely cosmetic, touching only Tailwind classes on the sidebar row layout with no logic alterations.

The diff is a focused CSS-only change to four class strings. The flex properties used (shrink-0, max-w-full, shrink, min-w-0, flex-1) interact correctly to produce the priority-truncation order described in the PR: directory collapses before the filename, and the filename truncates only when the container is too narrow even for it alone.

No files require special attention.

Important Files Changed

Filename	Overview
src/renderer/features/tasks/diff-view/changes-panel/components/changes-list-item.tsx	Flex layout rework to prioritize path truncation over filename truncation; no logic changes, only Tailwind class adjustments.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Available width in sidebar row] --> B{filename natural width\n≤ container width?}
    B -- Yes --> C[Filename renders at natural width\nDirectory fills remaining space]
    C --> D{Directory natural width\nfits remaining space?}
    D -- Yes --> E[Both shown in full]
    D -- No --> F[Directory shrinks and truncates\nFilename unchanged]
    B -- No --> G[max-w-full caps filename at 100% of container\nFilename truncates via truncate class\nDirectory collapses to 0px]

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