* migrate to v19
* migrate to v18
* Migration to be verified: v17 Convert minSpan to maxPerRow in panels
* Migration to be verified: 16 Grid layout migration
* Refactor v17 and v19 migrations to use shared helper functions
* Migration to be verified: 15 No-op migration for schema consistency
* Update v27.go
* Update v16.go
* cleanup
---------
Co-authored-by: Haris Rozajac <haris.rozajac12@gmail.com>
Co-authored-by: Haris Rozajac <58232930+harisrozajac@users.noreply.github.com>