move adminer off of common port

this is just to be less annoying because syncthing uses 8080 on one of my dev machines

docker-compose.yml

@@ -21,4 +21,4 @@ services:
     image: adminer
     restart: always
     ports:
-      - 8080:8080
+      - 8081:8080

templates/dancers.rs.html

@@ -11,7 +11,7 @@
   @:return_to_main_html()
 </div>
 
-<form hx-post="/api/dancers" hx-target="next #dancer_list" hx-swap="afterbegin">
+<form hx-post="/api/dancers" hx-target="next #dancer_list" hx-swap="afterbegin" hx-on::after-request=" if(event.detail.successful) this.reset()">
   <div class="flex w-3/5">
     <div class="relative">
       <input type="text" id="name" name="name"