Sync htm and fix js errors

wled00/data/settings_wifi.htm

@@ -103,6 +103,11 @@
     <option value="2">Always</option>
     <option value="3">Never (not recommended)</option></select><br>
 		AP IP: <span class="sip"> Not active </span><hr>
+		<h3>Experimental</h3>
+		Disable WiFi sleep: <input type="checkbox" name="WS"><br>
+		<i>Can help with connectivity issues.<br>
+		Do not enable if WiFi is working correctly, increases power consumption.</i>
+		<hr>
 		<button type="button" onclick="B()">Back</button><button type="submit">Save & Reboot</button>
 	</form>
 </body>