Set 'dropEffect' based on 'effectAllowed' for drag-and-drop in the viewer (issue 14942)

[Pldi23]

Issue #14942

Applied the solution suggested in comments

[Snuffleupagus]

Can you please use the standard names in the commit message, since that seems a little clearer. And please also include a link to https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/effectAllowed in the commit message.

E.g. with the commit message looking something like this:

Set `dropEffect` based on `effectAllowed` for drag-and-drop in the viewer (issue 14942)

See https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/effectAllowed

[Snuffleupagus]

/botio-linux preview

[Snuffleupagus]

/botio-windows preview

[calixteman]

Some double quotes are likely missing here:
https://github.com/HorizenOfficial/botio/blob/0cf5a068d8c534b518577be1d2b2ae2895581f81/lib/module.js#L107

[Snuffleupagus]

Some double quotes are likely missing here: https://github.com/HorizenOfficial/botio/blob/0cf5a068d8c534b518577be1d2b2ae2895581f81/lib/module.js#L107

Or perhaps in https://github.com/arturadib/botio/blob/master/lib/module.js, which I believe is what powers https://github.com/mozilla/botio-files-pdfjs

Edit: Anyway, I've quickly tested the patch locally instead :-)

[Snuffleupagus]

Thank you!