feat(ui): add relationship management features in schema editor

- Implement functionality to create, update, delete, and view relationships between tables.
- Introduce new UI screens for managing relationships, including forms for adding and editing relationships.
- Enhance table editor with navigation to relationship management.
- Ensure relationships are displayed in a structured table format for better usability.

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/uptrace/bun v1.2.16
 	golang.org/x/text v0.28.0
 	gopkg.in/yaml.v3 v3.0.1
+	modernc.org/sqlite v1.44.3
 )
 
 require (
@@ -43,5 +44,4 @@ require (
 	modernc.org/libc v1.67.6 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
-	modernc.org/sqlite v1.44.3 // indirect
 )