Add a new configuration option `keep_device_awake` to allow noVNC to
stop the local display from going to sleep. This is especially useful
with view-only sessions.
This new option has been added to the configuration UI, making it easier
for users to configure. When this option is changed at runtime, we will
request/release the wake lock.
We only hold the view lock while connected to a server. We will also
attempt to reacquire the wakelock if we lost it due to a visibility
change (the tab becoming inactive, or during the transition into/from
fullscreen).
All existing unittests have been run, and the change has been manually
tested in Firefox 145. Additional tests will be added later.
Try to be more consistent in how we capitalize things. Both the "Title
Case" and "Sentence case" styles are popular, so either would work.
Google and Mozilla both prefer "Sentence case", so let's follow them.
