* feat(live-filter): focus selected node after clear
* fix(#1785): retain focused node on filter toggle
* fix(#1785): apply requested changes
* fix(live-filter): focus last focused node when cleared on prompt
* refactor: store last focused node in `view` module
* refactor: store last focused node in view module
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Co-authored-by: Alexander Courtis <alex@courtis.org>