improvement(files): show loading spinner in file preview content area… #21962

Job	Run time
Detect Version	4s
Test and Build / Test and Build	4m 12s
Check Docs Changes	0s
Migrate Dev DB	0s
Deploy Trigger.dev (Dev)	0s
Build Dev ECR	0s
Build ARM64 (GHCR Only)	0s
Migrate DB / Apply Database Migrations	24s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME)	40s
Build AMD64 (./docker/pii.Dockerfile, ghcr.io/simstudioai/pii, ECR_PII)	23s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS)	24s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP)	3m 11s
Create GitHub Release	0s
Process Docs	0s
Create GHCR Manifests	0s
	9m 18s

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