Lucia v2 migration

[diericx]

• Updated code according to v2 migration docs https://lucia-auth.com/migrate/v2
• Removed the debug flag on journal entry form
• Prisma adapter for Lucia now uses the same Prisma client as everything else
• Logic change in hooks to account for data structure change in session retrieval
• Similar small logic change in trainingProgram load because
• All user session fetching is now done with a helper function that handles redirection
• All link-based redirection from form actions via query redirectTo is now handled in the hooks
• added types to parseMetricStrings
• organize imports
• use eslint as well for lint checks