- Updated to 3.9!

This is a reminder that all work on this PD branch has ended, as I've been busy rebuilding it from the ground up.

Feel free to test out the current beta for the new PD! https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3014407261

If you have any questions, hop onto the discord, and I'd be happy to chat about it.

- Added some scripted triggers
- Fixed some issues with Aquatic Worlds

- fixed an issue with hot gas giant spawning
- fixed some typos
- updated rural districts

- Added some scripted triggers for combat
- fixed an issues with drone jobs on the Techno Arc
- Fixed an issues with the Ash Eco Arc model

- Buffed Fortress Arc + Naval Admin Jobs to give more defense
- BREAD updated Eco Arc Shaders to match Empire color
- Fixed issue with progress events and under one rule
- Fixed Servile trait showing up incorrectly
- Fixed capital job weight
- Fixed issue with the relic to city world decision

- fixed an issue with a terraforming link
- typos
- issue with minor artificat storage

- 3.8 hot fixing, the final, I hope.

- fixed more stuff for 3.8

- found a few more changes.

- hopefully caught the rest of the 3.8 issues.