Absorb qtcharts submodule

commit5f83987562f9e5c7e712ffa6a812ed543fd05095
parent493497da24c542ba81a2bece81432b52927b286c
parentf16eaba7b2043826ac6de92cff49a31e812071ac
authormozsearch-qt index builder <mozsearch-qt@localhost>
committermozsearch-qt index builder <mozsearch-qt@localhost>
commit timeThu, 29 Oct 2026 16:26:27 +0000