* feat(mappings): add key map to close file buffer
* feat: implement Api.node.buffer.delete
* feat: implement Api.node.buffer.wipe
* refactor: add util fn for common delete ops on bufs
* fix: minor fixes
* refactor: fix lint issues
* fix: undo unintended ApiTreeToggleOpts change
* fix: change error message level to info
* fix: remove unused opts
* refactor: merge delete-buffer and wipe-buffer into single buffer file
* refactor: make wipe and delete fns take a node instead of a file path
* docs: update help with new API commands
* remove refactored utils.lua
* remove unused static setup
* tweak doc
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Co-authored-by: Alexander Courtis <alex@courtis.org>
