Allow cancelling the popovers by clicking away

[steurt]

Currently the popovers can only be closed by either confirming or emptying the value. I find that I'm missing the (default) click away behaviour of the popovers, which acts as a cancel. Therefore I've added it. I think this improves the user experience of the popovers.

[niuware]

Sorry for the conflicts, but I fixed 2 bugs on PR #136
Can you rebase and update your changes?

[steurt]

@niuware done.

[niuware]

For the link popover the behavior is correct but for the media one the cursor goes back to the beginning of the editor whilst when clicking the ✔️ button it moves the cursor to the end of the editor. The latter would be the expected behavior as for now.

[steurt]

@niuware I've merged the latest master changes into the branch of this pull request. This fixes the issue, now for the media popover the cursor behaves as desired when clicking away.

[steurt]

@niuware could you review this again?

[steurt]

@niuware could you check this again?

[niuware]

Hi @steurt, I haven't merged this one yet because of this unexpected behavior #129 (comment) . You can reproduce this by adding an image, then click on the image to edit it and close the popover by clicking away. You will notice the cursor goes back to the beginning of the editor instead of going to the end.

[steurt]

@niuware thank you for the feedback and the reproduction steps. I'll check it out and make sure it works properly.