v7.0.0

💥 Breaking Change

• emotion convertion #305 (@ndelangen @Andarist @smithambera @domyen)

🐛 Bug Fix

• Remove props from Icon #315 (@smithambera)
• Pull (most of) Footer from frontpage into the DS #314 (@smithambera)
• Remove letter spacing from Subheading muted styles #312 (@smithambera)
• Pull AddonsSubheading from frontpage into the DS #311 (@smithambera)
• Pull Heading from frontpage into the DS #310 (@smithambera)
• 333 - Pull Breadcrumb from frontpage into the DS #309 (@smithambera)
• Merge branch 'tech/upgrade-storybook' into tech/convert-to-emotion #296 (@ndelangen)

Authors: 4

• Amber Smith (@smithambera)
• Dominic Nguyen (@domyen)
• Mateusz Burzyński (@Andarist)
• Norbert de Langen (@ndelangen)