budgie-menu: Show terminal applications in the menu

[EbonJaeger]

Description

Enables the showing of terminal applications in the Budgie Menu.

Fixes https://github.com/BuddiesOfBudgie/budgie-desktop/issues/554

Signed-off-by: Evan Maddock maddock.evan@vivaldi.net

Submitter Checklist

• [ ] Squashed commits with git rebase -i (if needed)
• [x] Built budgie-desktop and verified that the patch worked (if needed)