Revert "dom0/appmenus: do not add "Add more shortcuts" menu (#458)" (#548)
Revert "dom0/appmenus: do not add "Add more shortcuts" menu (#458)" (#548)

This reverts commit 8b613a10b4b5f5aba7c0d2f8577f2c0d3f05aae2.

Restore this option.

woju/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin,QubesOS/qubes-core-admin