Update how the editor's `select_*` methods work in order to respect the
`search.case_sensitive` setting, or to be overriden by the
`BufferSearchBar` search options.
- Update both the `SearchableItem` and `SearchableItemHandle` traits
with a new `set_search_is_case_sensitive` method that allows callers
to set the case sensitivity of the search
- Update the `BufferSearchBar` to leverage
`SearchableItemHandle.set_search_is_case_sensitive` in order to sync
its case sensitivity options with the searchable item
- Update the implementation of the `SearchableItem` trait for `Editor`
so as to store the argument provided to the
`set_search_is_case_sensitive` method
- Update the way search queries are built by `Editor` so as to rely on
`SearchableItem.set_search_is_case_sensitive` argument, if not `None`,
or default to the editor's `search.case_sensitive` settings
Closes#41070
Release Notes:
- Improved the "Select Next Occurrence", "Select Previous Occurrence"
and "Select All Occurrences" actions in order to respect the case
sensitivity search settings
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Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
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