Add delimiter for list of values (#3686)

* Add delimiter
* Edit CHANGELOG.md

Signed-off-by: sabina.zaripova <sabina.zaripova@nu.edu.kz>

---------

Signed-off-by: sabina.zaripova <sabina.zaripova@nu.edu.kz>
Co-authored-by: Josh Romero <rmerqg@amazon.com>
(cherry picked from commit be47d9a)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

# Conflicts:
#	CHANGELOG.md

src/plugins/data/public/ui/filter_bar/filter_editor/phrases_values_input.tsx

@@ -69,6 +69,7 @@ class PhrasesValuesInputUI extends PhraseSuggestorUI<Props> {
           onChange={onChange}
           isClearable={false}
           data-test-subj="filterParamsComboBox phrasesParamsComboxBox"
+          delimiter=","
         />
       </EuiFormRow>
     );