[Feature] Allow Displaying Custom Images/Video

[BenShelton]

Packages

Media

Is your feature request related to a problem? Please describe.

N/A

Describe the solution you'd like

Allow displaying any image or video, not just the ones contained within a publication. This can be helpful for Public Talk images for example.

This should probably be a file chooser with some basic validation for the file extension.

Describe alternatives you've considered

Using another app, but that defeats the point of having one place to display media.

Additional context

N/A