Log Message:
(textproc/R-crosstalk) 1.1.1 to 1.2.0

## crosstalk 1.2.0

### Breaking changes

* Removed the Bootstrap HTML dependency attached to `filter_select()`,
  `filter_checkbox()`, and `bscols()`. This allows `{crosstalk}` to be
  used in a non-Bootstrap CSS framework (e.g., `{distill}`) without
  de-grading the overall look. If this change happens to break
  functionality or de-grade the overall appearance of your
  `{crosstalk}` site, consider adding
  `bslib::bs_theme_dependencies(bslib::bs_theme(version = 3))` to the
  UI definition, which will add back the Bootstrap dependency.

### Improvements

* Upgraded `filter_select()`'s selectize.js dependency to v0.12.4.