- Update `vim::object::find_mini_delimiters` in order to filter out the
  ranges before calling `vim::object::cover_or_next`, ensuring that the
  provided ranges are converted from multibuffer space into buffer
  space.
- Remove the `range_filter` from `vim::object::cover_or_next` was the
  `find_mini_delimiters` function is the only caller and no longer uses
  it

Closes #41346 

Release Notes:

- Fixed a crash that could occur when using `vim::MiniQuotes` and
`vim::MiniBrackets` in a multibuffer