fix: don't render files that are to large and suggest to open the file individually

[Laurin-Notemann]

The All changes modal crashed when trying to open a massive pnpm lock file.

this now collapses this file and suggest to open it individually.

[vercel]

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[greptile-apps]

Greptile Summary

Prevents crashes when viewing massive files (like pnpm lock files) in the All Changes modal by detecting large files through three criteria: line count >2500, content size >300KB, or truncated reads. Large files are collapsed by default and display a user-friendly message with a button to open them individually in the single-file diff viewer instead. Also includes a minor cleanup in AddRemoteProjectModal.tsx where an unused variable assignment was removed.

Confidence Score: 5/5

• This PR is safe to merge with no risk
• Clean defensive fix with proper thresholds, clear user feedback, and graceful degradation. The implementation correctly handles edge cases and provides an alternative workflow for large files.
• No files require special attention

Important Files Changed

Filename	Overview
src/renderer/components/AllChangesDiffModal.tsx	Added large file detection with three thresholds (line count, content size, truncated read) to prevent crashes when rendering massive files in the all-changes modal
src/renderer/components/FileChangesPanel.tsx	Wired up onOpenFile callback to allow users to open large files individually from the all-changes modal

_{Last reviewed commit: 843f236}