NGINX One: Document NGINX config file limits

[CVanF5]

Is your feature request related to a problem? Please describe

N1CC has limits on NGINX config file sizes. Both for individual files and total cumulative limits for multiple files. These limits don't appear to be documented.

Describe the solution you'd like

A note perhaps here: https://docs.nginx.com/nginx-one/how-to/nginx-configs/add-instance/ on those limits so the end user is aware.

Describe alternatives you've considered

A separate tasks exists for the NGINX Agent to log such errors and make it clear to the user that the limits have been reached.

[mjang]

@CVanF5 The notes I see on "config file sizes" suggest:

• Max 2.1 MB per file
• 55 MB total

Has this task been done?

A separate tasks exists for the NGINX Agent to log such errors and make it clear to the user that the limits have been reached.

[DeeptiN1]

@mjang please could you assign this issue to me? Thanks.

[DeeptiN1]

PR for review: #431

Proposed solution was to add the config file size limits on the Add an NGINX instance page.
However, the Add a file to an instance page seems like a better place to add this information. Please review and suggest changes. Thanks!