Add dark mode switcher to Toolbar (#367)

Update CHANGELOG.md

Bump to electron 34 (#343)

Electron 23+ (#328)

* Bump to electron 23

* Bump to electron 24

* Electron 25 does compile

* Bump to electron 26

Bump dotenv

 New version

Comment out astral usage

Node 16 for builds

Fix don't hide GTR option if CAT subst rates

Assume -m GTRGAMMA if non-GTR model override

Fixes #257

Upgrade raxml-ng to v1.1.0