* Add detail to face recognition MQTT update docs
Clarify that the weighted average favors larger faces and
higher-confidence detections, that unknown attempts are excluded,
and document when name/score will be null/0.0.
* Fix score decimal in MQTT face recognition documentation
`0.0` in JSON is just `0`.
* Clarify score is a running weighted average
* Simplify MQTT tracked_object_update docs with inline comments
Move scoring logic details to face recognition docs and keep
MQTT reference concise with inline field comments and links.
* fix (expand) lpr doc link
* rm obvious lpr comments
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Co-authored-by: Kai Curry <kai@wjerk.com>
* docs: Add frame selection and clean copy details to snapshots docs
Document how Frigate selects the best frame for snapshots, explain the
difference between regular snapshots and clean copies, fix internal
links to use absolute paths, and highlight Frigate+ as the primary
reason to keep clean_copy enabled if regular snapshot is configured clean.
* revert - do not use the word event
* rm clean copy is only saved when `clean_copy` is enabled
* Simplified the Frame Selection section down to a single paragraph.
* rm note about snapshot file ext change from png to webp
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Co-authored-by: Kai Curry <kai@wjerk.com>
