Unify SQL Query Style

[fm3]

• CAPITALIZED sql keywords
• Unified line breaks (somewhat)
• Not included, possibly a good idea in the future:
  • get rid of scala-style slick queries
  • more helper functions for upserts etc #6730
  • better auto-generated classes
  • automated formatting / checks
  • …

URL of deployed dev instance (used for testing):

• https://sqlspelling.webknossos.xyz

Steps to test:

• Test around, play with user + task management, annotate
• CI should also catch quite a few potential problems