Support links to video hosts other than YouTube

app/templates/base.html

@@ -6,7 +6,7 @@
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<title>{% block title %}title{% endblock %} - {{ config.USER_APP_NAME }}</title>
 	<link rel="stylesheet" type="text/css" href="/static/libs/bootstrap.min.css">
-	<link rel="stylesheet" type="text/css" href="/static/custom.css?v=33">
+	<link rel="stylesheet" type="text/css" href="/static/custom.css?v=34">
 	<link rel="search" type="application/opensearchdescription+xml" href="/static/opensearch.xml" title="ContentDB" />
 	<link rel="shortcut icon" href="/favicon-16.png" sizes="16x16">
 	<link rel="icon" href="/favicon-128.png" sizes="128x128">

app/templates/packages/create_edit.html

@@ -117,7 +117,7 @@
 				pattern="[0-9]+",
 				prefix="forum.minetest.net/viewtopic.php?t=",
 				placeholder=_("Tip: paste in a forum topic URL")) }}
-			{{ render_field(form.video_url, class_="pkg_meta", hint=_("Only supports YouTube, for now")) }}
+			{{ render_field(form.video_url, class_="pkg_meta", hint=_("YouTube videos will be shown in an embed.")) }}
 		</fieldset>
 
 		<div class="pkg_meta mt-5">{{ render_submit_field(form.submit) }}</div>

app/templates/packages/view.html

@@ -252,8 +252,11 @@
 					<ul class="gallery">
 						{% if package.video_url %}
 							<li>
-								<a href="{{ package.video_url }}" class="video-embed" title="{{ _('YouTube video embed') }}">
+								<a href="{{ package.video_url }}" class="video-embed">
 									<i class="fas fa-play"></i>
+									<div class="label">
+										<i class="fas fa-external-link-square-alt"></i>
+									</div>
 								</a>
 							</li>
 						{% endif %}