os-node_exporter != Prometheus Exporter

[simonmcnair]

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Describe the bug
Please can you rename the plugin or rename the service, or provide more substantive documentation on how to use os-node_exporter. It took me entirely too long to find out how to enable it considering the service name does not reflect the plugin name in any way.

Tip: to validate your setup was working with the previous version, use opnsense-revert (https://docs.opnsense.org/manual/opnsense_tools.html#opnsense-revert)

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
Please provide more documentation in the plugin details, or rename the plugin or forms to be more consistent with the plugins use.

Screenshots
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Relevant log files
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Additional context
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Environment
Software version used and hardware type if relevant.
e.g.:

OPNsense 23.7.8 (amd64).
Intel® Xeon™ E3-1225V5 3.3Ghz Quad Core
Network Intel® I210-AT

[simonmcnair]

I have created #4338 as a minimum barrier to entry.
Cheers