Move HTTP config into its own section

[hexedpackets]

There are a fair amount of top-level config options that relate to http. It would be cleaner to have them in their own section. I think the complete list is:

• host
• port
• connectors
• enableCors
• corsAllowOrigin

To prevent breaking existing configs, we should just deprecate those top-level options while adding the new section. At some point in the future we can fully remove them.

[stale[bot]]

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