Fix: sse changes

components/index.html

@@ -1,4 +1,8 @@
 {{define "main"}}
+	<div hx-ext="sse" sse-connect="/sub/sse" sse-swap="test">
+	    Contents of this box will be updated in real time
+	    with every SSE message received from the chatroom.
+	</div>
 	<!-- user has no username -> login form -->
 	{{ if not . }}
 	{{template "login"}}