fix: reset selection on blur

[christianhg]

selection-bug-demo.mov

Make a selection:

And then blur the editor:

Before this change, the selection would be persisted after blurring the editor. This would make the toolbar still function:

The problem is (unsurprisingly) also present in the Studio (notice the selected "B" in the blurred editor):

[skogsmaskin]

There could be an issue here I think in regard to embedded dialogs and similar.

For instance, if you open a modal from a void block, you would want the void block to still be selected in the editor. So when you close the modal, you return to where you were (void block selected) without having to keep track of the previous selection. I have a feeling that this will completely wipe out that selection and put the selection to the top of the editor when it's refocused?

[christianhg]

There could be an issue here I think in regard to embedded dialogs and similar.

For instance, if you open a modal from a void block, you would want the void block to still be selected in the editor. So when you close the modal, you return to where you were (void block selected) without having to keep track of the previous selection. I have a feeling that this will completely wipe out that selection and put the selection to the top of the editor when it's refocused?

This is a really good point. I'll have to thoroughly test this change in the Studio before I actually merge it.