File Description plugin does not work alongside Continuous Print

[Mike5357]

Describe the bug
This plugin does not work in combination with File Description; its buttons will not appear in the Files pane when ContinuousPrint is installed.

To Reproduce
Steps to reproduce the behavior:

1. Install Continuous Print
2. Install FileDescriptions
3. Restart OctoPrint
4. See Continuous Print's button appears in the Files pane, but FileDescriptions do not.

Expected behavior
Both plugins' buttons should be visible.

Additional context
Also reported to File Descriptions at larsjuhw/Octoprint-FileDescription#4