SearchWP 4.4.0

[Fix] Synonym application too broad in some cases
[Fix] Document content reindexing in some cases
[Fix] Missing method reference in Comment source
[Fix] Forced phrase search returns no results if the search string doesn't contain non-phrase tokens
[Improvement] Search string normalization
[Improvement] String highlight application when synonyms are applied
[Improvement] Handling of double quotes in synonym logic in some cases

- **[Improvement]** Apply `AND` logic when applicable during quoted search query
- **[Fix]** Default application of 'Did you mean?' functionality in some cases
- **[Fix]** Regression introduced in 4.1.19 that prevented some results from displaying in some cases
- **[New]** Filter `searchwp\native\args\post_type` to modify native search post type when necessary

- **[Change]** Synonym processing now stops after first application unless `searchwp\synonyms\aggressive` filter returns `false`
- **[Fix]** Global excerpt and highlighting process now uses original search string, disregarding any filtration in some cases