Add API and WebUI to export recordings (#6550)

* Add ability to export frigate clips

* Add http endpoint

* Add dir to nginx

* Add webUI

* Formatting

* Cleanup unused

* Optimize timelapse

* Fix pts

* Use JSON body for params

* Use hwaccel to encode when available

* Print ffmpeg command when fail

* Print ffmpeg command when fail

* Add separate ffmpeg preset for timelapse

* Add docs outlining the export directory

* Add export docs

* Use ''

* Fix playlist max time

* Lower max playlist time

* Add api docs for export

* isort fixes

web/src/Sidebar.jsx

@@ -44,6 +44,7 @@ export default function Sidebar() {
       </Match>
       {birdseye?.enabled ? <Destination href="/birdseye" text="Birdseye" /> : null}
       <Destination href="/events" text="Events" />
+      <Destination href="/exports" text="Exports" />
       <Separator />
       <Destination href="/storage" text="Storage" />
       <Destination href="/system" text="System" />