v1.6.7

What's Changed

Fixes 🔧

• fix(exams): sort exams by date in the TeachingScreen.tsx, Ref #504 by @FabrizioCostaMedich in #505
• fix(login): enable login even when fcm is not enabled, but display warning by @QcFe in #515
• fix(exams): fix exam booked count and available count by @FabrizioCostaMedich in #511

Full Changelog: v1.6.6...v1.6.7