am 4c4a47f4: docs: add developer dashboard page and add topic link to it from the homepage (replacing the video topic)

Merge commit '4c4a47f42101a57ab8ff05a8e035d97582c3368a' into eclair-plus-aosp

* commit '4c4a47f42101a57ab8ff05a8e035d97582c3368a':
  docs: add developer dashboard page and add topic link