improvement(agentphone): update logo and bgcolor (#4753) #17613

Job	Run time
Detect Version	4s
Test and Build / Test and Build	5m 19s
Check Docs Changes	-1s
Build Dev ECR	-1s
Build ARM64 (GHCR Only)	-1s
Migrate Dev DB	0s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS)	28s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP)	4m 4s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME)	1m 38s
Process Docs	0s
Create GHCR Manifests	0s
Create GitHub Release	0s
	11m 30s

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