Rewrite restream (#5106)

* Tear out restream config

* Rework birdseye restream

* Create go2rtc config handler

* Fix bug

* Write start script

* Rework style

* Fix python run syntax

* Output as json instead of yaml

* Put old live config back and fix birdseye references

* Fix camera webUI

* Add frigate env var subsitutions

* Fix webui checks

* Check keys

* Remove unused prest

* Fix tests

* Update restream docs

* Update restream docs

* Update live docs

* Update camera specific recommendation

* Update more docs

* add links for the docs

Co-authored-by: Felipe Santos <felipecassiors@gmail.com>

* Update note about supported audio codecs

* Move restream to go2rtc

* Docs fixes

* Add verification of stream name

* Ensure that webUI uses camera name

* Update docs to reflect new live stream name

* Fix check

* Formatting

* Remove audio from detect

Co-authored-by: Felipe Santos <felipecassiors@gmail.com>

* Fix docs

* Don't handle env variable substitution

* Add go2rtc version

* Clarify docs

Co-authored-by: Felipe Santos <felipecassiors@gmail.com>

docs/docs/troubleshooting/faqs.md

@@ -14,7 +14,7 @@ By default, Frigate removes audio from recordings to reduce the likelihood of fa
 ```yaml title="frigate.yml"
 ffmpeg:
   output_args:
-    record: preset-record-generic-audio
+    record: preset-record-generic-audio-aac
 ```
 
 ### My mjpeg stream or snapshots look green and crazy
@@ -25,7 +25,7 @@ This almost always means that the width/height defined for your camera are not c
 
 ### I can't view events or recordings in the Web UI.
 
-Ensure your cameras send h264 encoded video, or [transcode them](/configuration/restream.md#changing-restream-codec).
+Ensure your cameras send h264 encoded video, or [transcode them](/configuration/restream.md).
 
 ### "[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5639eeb6e140] moov atom not found"