Add theme warning with hardcoded link

Signed-off-by: Minecon724 <minecon724@noreply.git.m724.eu>

options/locale/locale_en-US.ini

@@ -829,6 +829,7 @@ manage_themes = Default theme
 manage_openid = OpenID addresses
 email_desc = Your primary email address will be used for notifications, password recovery and, provided that it is not hidden, web-based Git operations.
 theme_desc = This theme will be used for the web interface when you are logged in.
+theme_warning = <strong>WARNING:</strong> Themes are made by third parties. <a href="/git724/git724/src/branch/master/THEMES.md">Click to read more.</a>
 primary = Primary
 activated = Activated
 requires_activation = Requires activation

templates/user/settings/appearance.tmpl

@@ -7,14 +7,14 @@
 		</h4>
 		<div class="ui attached segment">
 			<div class="ui email list">
-				<div class="item">
-					{{ctx.Locale.Tr "settings.theme_desc"}}
+				<div class="item tw-mb-4">
+					<p>{{ctx.Locale.Tr "settings.theme_desc"}}</p>
+					<p>{{ctx.Locale.Tr "settings.theme_warning"}}</p>
 				</div>
 
 			<form class="ui form" action="{{.Link}}/theme" method="post">
 				{{.CsrfTokenHtml}}
 					<div class="field">
-						<label for="ui">{{ctx.Locale.Tr "settings.ui"}}</label>
 						<div class="ui search selection dropdown" id="ui">
 							<input name="theme" type="hidden" value="{{.SignedUser.Theme}}">
 							{{svg "octicon-triangle-down" 14 "dropdown icon"}}