Beta build changelogs

[hl2jeep]

Would be nice if we had some changelogs of the beta builds, wherever that may be, i have to go looking around seeing what changed, even if its something very basic and just covers the main changes it would be very nice :)

[sonicv6]

Nightlies are built automatically whenever there is a new change. Commit messages/descriptions should normally give you a good idea if what has changed.

[lulzsun]

I think we can look to having a modal popup that provides a list of changes (a list of the commit messages). Maybe this can be done by generating a change log file with GitHub actions and attaching it to the release files.

Also dupe of #125.