There are a few fields in confighttp structs that use e.g. a pointer to int instead of an int. This is an unusual pattern in configuration from components, so I think we should review why we use it and whether it is justified.

To fix this issue we need to:

• Define when we can use 'pointer to type' in configuration vs just type and relying on the zero value
• Review the fields on confighttp based on this.

On configgrpc we have a similar pattern for the configtls configuration.