Add Right Click to Manage Mods Menu

[dreamsyntax]

• It would be nice to be able to right click a mod in the Manage Mods screen and have an "Open Containing Folder" option.
• Alternatively another button on the left near "new/edit" etc

Right clicking any mod in the Manage Mods screen does nothing currently.

[Sewer56]

All things considered there's also a PR to replace this menu outright #668

As an interesting fact

[dreamsyntax]

I definitely like the proposed changes in that PR. If anything that should go before something like this.