Remove amd_pstate=passive, install nvtop on Linux, force-enable hardware decoding in firefox.

The fan was spinning up a bunch so I am going to go back to amd_pstate=active.

ansible/roles/firefox/defaults/main.yaml

@@ -1,5 +1,6 @@
 firefox_config:
   # identity.sync.tokenserver.uri: "https://ffsync.fizz.buzz/token/1.0/sync/1.5"
+  media.hardware-video-decoding.force-enabled: true
   media.ffmpeg.vaapi.enabled: true
   doh-rollout.doorhanger-decision: "UIDisabled"
   dom.security.https_only_mode: true