Docs updates (#23407)

* refactor go2rtc docs

* clarify go2rtc language in live

* add export docs

* Move around config items to reflect reference config is now for advanced users

* Remove outdated ipv6 section

* Fix broken links

* live usage docs

* review usage docs

* history usage

* explore usage

* add usage sidebar and move related text to usage sections

* update links

* update live

* move exports to usage

* fix anchors

* Make starts of usage pages consistent

* refactor network config

* Adjustments for review

* Add AI details to history page

* describe alerts vs detections in review usage

* simplify

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Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

docs/docs/configuration/record.md

@@ -11,6 +11,12 @@ Recordings can be enabled and are stored at `/media/frigate/recordings`. The fol
 
 New recording segments are written from the camera stream to cache, they are only moved to disk if they match the setup recording retention policy.
 
+:::tip
+
+To keep a specific clip beyond your retention window, [export](/usage/exports) it rather than increasing retention for the whole camera. Exports are saved separately and are never removed by retention.
+
+:::
+
 H265 recordings can be viewed in Chrome 108+, Edge and Safari only. All other browsers require recordings to be encoded with H264.
 
 ## Common recording configurations