Seed via JSON, remove multi-class fields from sessions where not applicable, correct sorting of subsessions on season page

[Shinsina]

In this PR:

• Remove mongodb, bump all deps except astro. dbbafd3
• Exclude Database seed files from git. 7bcf649
• Remove mongodb related secrets. 55b6d0a
• Default division_rank to 0 on Standings table. 73b903a
• Use JSON files over MongoDB for seeding. d4c2e2b
• Combine practice and qualifying session-results components to non-race session-results.766288b
• Remove excess keys when session is not multiclass. 256de10
• Define no-race-session-keys-to-display Set. cea9192
• Passthrough if the session is not multi-class to SessionResultsTables. 45287b7
• Utilize notMultiClass to passthrough to individual result tables to remove excess keys. 130456d
• Correctly sort subsessions on season page. d981fe5
• Format session-results components. f5eca3b

[github-actions]

Your database schema is ahead of production database.
It can be automatically migrated by Astro.