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

docs/docs/features/hardware-transcoding.md

@@ -22,7 +22,8 @@ You do not need to redo any transcoding jobs after enabling hardware acceleratio
 - WSL2 does not support Quick Sync.
 - Raspberry Pi is currently not supported.
 - Two-pass mode is only supported for NVENC. Other APIs will ignore this setting.
-- Only encoding is currently hardware accelerated, so the CPU is still used for software decoding and tone-mapping.
+- By default, only encoding is currently hardware accelerated. This means the CPU is still used for software decoding and tone-mapping.
+  - NVENC and RKMPP can be fully accelerated by enabling hardware decoding in the video transcoding settings.
 - Hardware dependent
   - Codec support varies, but H.264 and HEVC are usually supported.
     - Notably, NVIDIA and AMD GPUs do not support VP9 encoding.
@@ -65,6 +66,7 @@ For RKMPP to work:
 
 3. Redeploy the `immich-microservices` container with these updated settings.
 4. In the Admin page under `Video transcoding settings`, change the hardware acceleration setting to the appropriate option and save.
+5. (Optional) If using a compatible backend, you may enable hardware decoding for optimal performance.
 
 #### Single Compose File