Fixes and minor improvements

Added

• An event validator for debugging has been added

Changed

• Update fr-FR by @Faeeth in #526
• AutoUpdater has been revised to provide more reliable updates
• External Lootlogger link has been removed
• The language can now be changed in the tool without having to restart the tool
  • There is now only one language file localizations.json

Fixed

• Culture settings are now applied better and texts and numbers are displayed correctly in more places

Full Changelog: v7.5.5...v7.6.0