Review Checklist

Does this PR follow the Contribution Guidelines? Following is a partial checklist:

Proper conventional commit scoping:

• For example, fix(lsp): some lsp-related bugfix

• Pull request title has the appropriate conventional commit prefix.

If applicable:

• Tested
  • Tests have been added.
  • Tested manually (Steps to reproduce in PR description).
• Updated documentation.

Note to self for when I pick this up again:

This is blocked on the following issue:

• If a user defines a keymap (e.g. h and l for quit and confirm), without specifying the buffer, the default mapping will be overridden. A potential solution could be to invoke a User autocommand with the buffer ID in the data table.

Ideally, (neo)vim should fall back if a <Plug> mapping is not defined. But this doesn't appear to be the case.