Add pushUrl option to ajax api and improve hx-location push url handling (#3404)

* add pushUrl option

* Remove duplicate save to history

* Improve pushUrl and hx-location url handling

* Add replace option to api as well

* minor wording change

* push headers support true

* roll back anchor support for header base paths except for true case

* add selectOOB and simplify ajax helper

* Remove refactor

* reverse order of push/replace

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Co-authored-by: MichaelWest22 <michael.west@docuvera.com>