v0.5.6 — Sync preview dialog

What's new in v0.5.6

Added

• Sync preview dialog: clicking the Sync button now shows a "Files to Sync" confirmation dialog before any pull operation begins.
  • Lists every file that will be updated from the remote (git diff HEAD..@{u} --name-status)
  • Colour-coded by change type: green = added, orange = modified, red = deleted, blue = renamed/copied
  • Includes a colour legend at the bottom of the list
  • Sync button to proceed, Cancel to abort with no changes made
  • The existing dirty-file / stash flow is unchanged and follows after confirmation