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/routes/index.js

@@ -23,6 +23,11 @@ export async function getEvents(_url, _cb, _props) {
   return module.default;
 }
 
+export async function getExports(_url, _cb, _props) {
+  const module = await import('./Export.jsx');
+  return module.default;
+}
+
 export async function getRecording(_url, _cb, _props) {
   const module = await import('./Recording.jsx');
   return module.default;