Fix for date-formatted filename patterns not producing correct date format

Added option to generate custom result filenames using a filename pattern derived from email properties

- Added the ability to generate/save an extraction report (.html) following execution
- Added localization for Hungarian (courtesy of user Óvári)
- Fixed bug causing silent mode to fail

What's New
- Added option for extracting embedded (inline-attached) images
- Added new version notification (automatic display of Release Notes) upon new version release
- Added permanent detach option (Thunderbird version 123 or later required)
- Added identification of detached and deleted attachments


Fixes
- Removed recursive extraction (extracting attachments within email [.eml] files which themselves are attachments)
- Switched to zip.js library (from jszip) to mitigate an intermittent memory issue

Splits the extraction results into multiple .zip files if the cumulative size of the selected attachments exceeds ~750MB. The user is prompted for the filename/location for each of the resultant .zip files.

Added resources in support of future localization (international languages).

Fixed minor case switch error regarding attachment grouping.