v0.5.8

## What's Changed
* ci: run all matrix tests after failures by @simonklee in https://github.com/anomalyco/opentui/pull/1412
* utf8: count Thai spacing marks in widths by @simonklee in https://github.com/anomalyco/opentui/pull/1413
* ci: save Linux core dumps from failed tests by @simonklee in https://github.com/anomalyco/opentui/pull/1414
* mouse: track buttons independently by @simonklee in https://github.com/anomalyco/opentui/pull/1416
* ot readme docs by @simonklee in https://github.com/anomalyco/opentui/pull/1417
* terminal: match Ghostty wide grapheme widths by @simonklee in https://github.com/anomalyco/opentui/pull/1415
* ci: include hidden core dump files by @simonklee in https://github.com/anomalyco/opentui/pull/1422


**Full Changelog**: https://github.com/anomalyco/opentui/compare/v0.5.7...v0.5.8