Duration column does not display media duration

[UndeadKitten]

Describe the bug
Windows 11's file explorer seems to use a "Length" field to display the duration of all media files. The "Duration" field in Explorer++ seems to only display a duration for MP3 files.

To Reproduce
Steps to reproduce the behavior:

1. Set View to "Details"
2. Right click a column and select "More..."
3. Enable the "Duration" column.
4. Look at various media file types to see if they display their duration.

Expected behavior
The "Duration" field in Explorer++ should display the duration for all media files, not just MP3s.

Screenshots
Windows 11 file explorer screenshot (Windows file explorer also seems to have a duration field but it doesn't seem to be used for media):

Explorer++ screenshot, only displaying the 00:04:52 file because it's an MP3, but not the other 3 files because they are MP4 and WEBM:

Version (please complete the following information):

• Explorer++ version: 1.5.0.2777 dev (64-bit build)
• OS: Windows 11