v1.5.4

Added

• Open file location. Right-clicking a mod now offers "Open file location",
  which opens the mod's folder in the system file manager - the containing
  directory for a local mod, the workshop item's folder for a workshop mod.
  Available for every mod.

Fixed

• "Date installed" sort. Sorting by date now uses each mod's install time
  captured at scan time (when the file landed on your system) instead of the
  file's modification time. Local mods carry the modder's build date in their
  modification time, so a freshly added mod could sort as the oldest; the
  order now reflects when you actually installed each mod, and a missing file
  no longer breaks the sort.

Changed

• Translation workflow. English and German stay complete (the languages we
  maintain); every other language may now be partial and falls back to English
  for any key it has not translated yet. A translator can contribute just the
  new strings without blocking the build. Polish (pl) is registered so it
  appears as soon as a translation is dropped in.