fix: N1C config size limits should apply to all types of configs

[mjang]

Describe the bug

Currently, we limit a compressed archive of all types of instances to 5 MB.

• We document that in a limited location, https://docs.nginx.com/nginx-one/staged-configs/import-export-staged-config/#considerations
• This limit applies in all cases, therefore I think we should move the section to a more appropriate location

To reproduce

Steps to reproduce the behavior:

1. Deploy this project using [...]
2. View output/logs/configuration on [...]
3. See error

Expected behavior

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Your environment

• Version/release of this project or specific commit

• Target deployment platform

Additional context

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