ipv6-security-lab v0.20210709.0

Features

• add Vagrantfile-in-box to be part of the box (526e619)
• fixed MAC address of the virtual router (520f09a)
• replace the frontend with a RIPE NCC styled one (a10183f)
• switch to ubuntu/focal64 base box (5fa8f70)

Bug Fixes

• frontend: small adjustments (bb221aa)
• frontend: Workaround broken iframe resize on Firefox (0cbdbc6)