Update tabline whenever we get `_update()`ed

Fix some open_opts issues with tabline

First draft of tabline feature & add setting for number items

Fixed typing

Add `hide_on_empty` setting that automatically hides the window when no marks exist

Merge pull request #4 from Sombrer0Dev/master

fix: removed useless if statement

feat: Update wrapper for opening inside callback

fix: revoved redundant if statement

feat:added no marks message

fix: Fixed issue with constant Grapple update

feat:Added ability to pass opts to open and toggle

Support for oil.nvim paths

Support for custom formatting of items

Add new format options & rename `M` to `Harpeek`