chore: fix formatting and lint errors across Makefile, backend, and adminfront

This commit addresses several linting and formatting issues that caused CI checks to fail:
- Makefile: Removed obsolete '--organize-imports-enabled' from Biome and switched to '@biomejs/biome'.
- backend: Fixed spacing and alignment issues according to gofmt.
- adminfront: Fixed multiple unused variables and imports, and configured unsafe fixes in the Biome config to remove dead code.

backend/internal/service/worksmobile_mapper_test.go

@@ -251,8 +251,8 @@ func TestBuildWorksmobileUserPayloadKeepsFirstAffiliationPrimaryWhenBaronReprese
 		user,
 		gpdtdcTenant,
 		map[string]domain.Tenant{
-			gpdtdcID:      gpdtdcTenant,
-			firstTenantID: firstTenant,
+			gpdtdcID:       gpdtdcTenant,
+			firstTenantID:  firstTenant,
 			secondTenantID: secondTenant,
 		},
 		nil,