Integrates wails3 and datastar. My my wails2 demo devines a custom plugin and IPC-based SDK code to do everything. This one runs a gin server which is piped directly through wails mechanics as suggested by docs. So there is much less custom stuff going on here which I think should be better in general.

The only issue I encoutered was fixed by this PR to Wails. When this gets merged and released we can drop this line from go.mod this uses my fork of wails.