luci-base: fix footer template

Move the apply widget markup before the final </html> tag to avoid XHTML
errors with the OpenWrt theme.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

modules/luci-base/luasrc/view/footer.htm

@@ -5,8 +5,6 @@
 -%>
 
 <%
-	include("themes/" .. theme .. "/footer")
-
 	local is_rollback_pending, rollback_time_remaining, rollback_session, rollback_token = luci.model.uci:rollback_pending()
 
 	if is_rollback_pending or trigger_apply or trigger_revert then
@@ -27,4 +25,6 @@
 	</script>
 <%
 	end
+
+	include("themes/" .. theme .. "/footer")
 %>