feat(server): fully accelerated nvenc (#9452)

* use arrayContaining

* libplacebo for nvenc

update dockerfile

* tweaks

* update nvenc options

* tweak settings

* refactor

* toggle for hardware decoding, software / hardware decoding for nvenc and rkmpp

* fix software tone-mapping not being applied

* separate configs for hw/sw

* update api

* add hw decode toggle

* fix mutating config

* remove `version` flag

* fix config type

* remove submodule

* handle temporal AQ

* remove duplicate tests

* use `tonemap_opencl`

* wording

* update docs

mobile/openapi/test/system_config_f_fmpeg_dto_test.dart

@@ -21,6 +21,11 @@ void main() {
       // TODO
     });
 
+    // bool accelDecode
+    test('to test the property `accelDecode`', () async {
+      // TODO
+    });
+
     // List<AudioCodec> acceptedAudioCodecs (default value: const [])
     test('to test the property `acceptedAudioCodecs`', () async {
       // TODO