...Anyway, I created a Userscript for the Chrome/Firefox Stylus Extension that reverts the new dashboard to the old format. This took a lot of tweaking and it's not perfect at all - The search feature moves around depending on your monitor size, you can edit it yourself though. But if anyone wants it I'll be uploading it soonish!
EDIT: Might take longer than I thought ugh, will update when I can upload
EDIT 2: Version 1 is done, I might tweak it in the future cause there's still a few buggy parts
Here it is! If you don't want the sticky header you can remove the labelled script at the bottom of the css below /* Sticky Header*/ If you experience any bugs let me know, I did my best with what I had - feel free to edit it yourself too! Its not perfect but it looks mostly normal! The dropdown menus aren't exactly the same, but they're working - I didn't have the energy to polish them right now but will try and fix them up later if I can.
Edit: Ended up fixing the dropdown menus anyway xD I'll probably tweak any issues I find as I use this and make sure to update the userstyle so be sure to check for updates occasionally.
Remember you need the Stylus Chrome/Firefox Extension for this to work!
I haven't fully tested it with Stylish but it should also work with that extension if you already have it installed Edit (21/07): Fixed another thing I broke (search bar disappearing) and made the Account Menu look a little more like it used to
Be sure to check for updates, I'm fixing things as I go! To update click the Manage button on Stylus and click the check for update button below!