Increase width of rate limiting text box.

setup/templates/steps/config.html

@@ -50,7 +50,7 @@ Or in plain english: if receivers start to classify your mail as spam, this post
 <div class="form-group">
   <label>Authentication rate limit (per source IP address)</label>
   <!--   Validates number input only -->
-  <p><input class="form-control" style="width: 7%; display: inline;" type="number" name="auth_ratelimit_pm"
+  <p><input class="form-control" style="width: 9%; display: inline;" type="number" name="auth_ratelimit_pm"
   		value="10000" required > / minute
   </p>
 </div>