Add hide mouse class to the container if inactive

[nanot1m]

Current PR add mouse module to shower.

Only for full mode:

If mouse is not moved for timeout (default 5000ms) then mouse-hidden (configurable in options) class is added to the shower container.
And on every mouse move timer is reset and this class is being removed.

Fixes shower/shower#377

[pepelsbey]

Thank you so much!

I decided to fool around a bit and called the class name pointless :)

I’ll check a few things first and then merge it.

[pepelsbey]

So I made it work by replacing on with addEventListener.

But there’s a quirk:

1. Open slides in list mode: nothing happens so far
2. Enter full screen mode, stop moving cursor: you’ll get the poinless class name.
3. Exit full screen mode (Esc): the poinless class name will go away
4. Do nothing for 5s and you’ll get the poinless class name (in list mode)

Meaning that the timer should stop counting once I get back from full screen mode back to list mode.

It should be similar to the next.js module, something like if (shower.isListMode) return;

[pepelsbey]

Thank you! I’ll release it shortly :)

It would be also great to write some tests for this module. So if you’ll have some time it would be awesome.