Move D and P actions to more complicated shortcuts.

I find myself to have quite often turn on the 'show meaning' and 'show pinyin' by clicking D and P.

Also the action under Z is turned on way too often (I don't use it).

It would be nice to have these actions mapped to other shortcuts, perhaps more complicated. cmd+ctrl+alt+shift+D/P/Z or something like that.

I'll add the settings for the keyboard shortcuts to Chrome's shortcuts page (chrome://extensions/shortcuts). That should make it quite easy to change or disable specific shortcuts.