Remove urls from translations (#31950)

Part of #27700

Removes all URLs from translation strings to easy up changing them in
the future and to exclude people injecting malicious URLs through
translations. First measure as long as #24402 is out of scope.

templates/admin/dashboard.tmpl

@@ -2,7 +2,7 @@
 	<div class="admin-setting-content">
 		{{if .NeedUpdate}}
 			<div class="ui negative message flash-error">
-				<p>{{ctx.Locale.Tr "admin.dashboard.new_version_hint" .RemoteVersion AppVer}}</p>
+				<p>{{ctx.Locale.Tr "admin.dashboard.new_version_hint" .RemoteVersion AppVer "https://blog.gitea.com"}}</p>
 			</div>
 		{{end}}
 		<h4 class="ui top attached header">