Fix autocomplete problem

Updated the form to not auto complete what we wrote before by removing action="" and adding autocomplete="off"
Making so now, especially when I'm on mobile I don't get my screen filled with previously typed sentences.

This commit is related to erming#532

client/index.html

@@ -271,7 +271,7 @@ <h2>About Shout</h2>
 					</div>
 				</div>
 			</div>
-			<form id="form" action="">
+			<form id="form" autocomplete="off">
 				<div class="inner">
 					<button id="submit" type="submit">
 						Send