fix(listeners): close dropdowns when user clicks outside of them

[tangjeff0]

parent issues: #59 #97

demo: in Roam, slash menu and inline search have slightly different close conditions.

• Slash menu closes when click anywhere outside of block.
• Inline search closes when click outside of [[_]], where _ is your caret

steps:

• create a MOUSEDOWN listener in listeners
• if a close condition is met, dispatch an event
• in blocks, if that event is dispatched, reset search/type to nil. this should close either dropdown

[alaq]

I'm going to take a look at this!

[tangjeff0]

Great! If there is a way to do this locally, that doesn't use global listeners, that would be ideal. I think refs let you do this but not sure.

All the dropdowns where this would apply:

• context-menu when clicking on bullets
• page menu
• inline search
• slash command menu
• though not a dropdown, Athena could use this too