* Renaming Infrastructure to Metrics whenever the context is the metrics app.
* More renames, and picking up a few stray references to Infrastructure/Metrics/Logs UI too.
* Fixing typo
* docs: uptime guide first draft
* docs: uptime guide updates
* docs: clean up duplication
* docs: nits
* temporarily remove link from kib to uptime
* reviewer feedback
* change from getting started to install