Release 1.0.0

What's Changed

• Add create packages workflow for releases by @jonandernovella in #451
• Bump react-datepicker from 4.7.0 to 4.8.0 in /frontend by @dependabot in #457
• Reuse toast component to display URL warning by @HenrikeW in #458
• Add help page by @jonandernovella in #459

Full Changelog: 1.0.7-beta...1.0.0