html.c: media: disable preloading

Signed-off-by: Yonle <yonle@lecturify.net>

html.c

@@ -1657,6 +1657,7 @@ xs_html *html_entry(snac *user, xs_dict *msg, int local,
             if (xs_startswith(t, "video/")) {
                 xs_html_add(content_attachments,
                     xs_html_tag("video",
+                        xs_html_attr("preload", "none"),
                         xs_html_attr("style", "width: 100%"),
                         xs_html_attr("class", "snac-embedded-video"),
                         xs_html_attr("controls", NULL),
@@ -1671,6 +1672,7 @@ xs_html *html_entry(snac *user, xs_dict *msg, int local,
             if (xs_startswith(t, "audio/")) {
                 xs_html_add(content_attachments,
                     xs_html_tag("audio",
+                        xs_html_attr("preload", "none"),
                         xs_html_attr("style", "width: 100%"),
                         xs_html_attr("class", "snac-embedded-audio"),
                         xs_html_attr("controls", NULL),