Clip improvements

[oliverroick]

I see some behavior too:

• sometimes it's unclear if i should scroll
• when i enter the clip mode, it's unclear that i should click the spectrogram. could we may be add the clip window as soon as i enter the mode?
• dragging the clip window doesn't seem to do anything. i have to use the window. which i think is ok!

Originally posted by @geohacker in https://github.com/developmentseed/bioacoustics-frontend/issues/52#issuecomment-1582849170

[oliverroick]

@geohacker

sometimes it's unclear if i should scroll

Do you mean whether you can/should scroll to pan the spectrogram or zoom?

@LanesGood Let's discuss how and if we want to tackle these.

[LanesGood]

The wavesurfer plugins have options like "autocenter" and "autoscroll" which I believe we should take advantage of as much as possible. Ideally if a user is playing the clip, the playhead cursor is visible in the window.

[LanesGood]

I also agree that when a user enters clip mode, the clipping window should automatically appear in the center of the current audio viewport (if there is no clip already set).

[LanesGood]

Additionally, with #67 in place it would be ideal to center the clip once dragging is complete.