I'm looking for help with a permanent site-wide redirect.

I have a website that I moved to a new server.
For some crazy reason the old server had an odd structure that I am changing.
The URL root for the old site is http://threedaystubble.com/e/
I have changed it to be http://threedaystubble.com/

Example:
threedaystubble.com/e/gallery.html --- redirects to ----> threedaystubble.com/gallery.com

There are many other folders and html files that need this site-wide redirect.

Of course anyone can access the site when linking to the root, but there are many links out there referring to the old directory structure under /e/.
I'm looking for assistance writing a redirect so all those inbound links out there on the internet work again.

I tried a couple of ideas, but they didn't work,
I thought this location directive inside a server block was best, but it didn't work.

location = /e {
return 310 $scheme://threedaystubble.com;
}

Any help would be greatly appreciated.