Add an option to delete both remote and local branch in one menu item

[ekorchmar]

• PR Description

Adds menu option to delete the branch on remote first, then locally.

• Please check if the PR fulfills these requirements

• [x] Cheatsheets are up-to-date (run go generate ./...)
• [x] Code has been formatted (see here)
• [ ] Tests have been added/updated (see here for the integration test guide)
• [ ] Text is internationalised (see here)
• [ ] Docs have been updated if necessary
• [ ] You've read through your own file changes for silly mistakes etc