#179 Removed excessive selection cleanup

[oleksandr-danylchenko]

Issue

See - https://github.com/recogito/text-annotator-js/issues/179

Changes Made

I removed the excessive selection.clean() calls that can cause losing the same selected annotation reference. Previously upon releasing the Shift or a finger, the selection was cleared out and immediately updated. That cleanup would make the consumer think that a brand-new annotation was selected while the user just kept selecting the text after a pause. Additionally, that cleanup is processed inconsistency in React 18 vs React <18 consumers.

Now, the selection is cleared only on:

• selectionchange event is emitted but there's no currentTarget present (already in place)
• On "Select All" handling
• On an arbitrary arrow press
• Click beyond the annotation range

[rsimon]

Thanks!