Made #channel link in /mentions jump to #channel split (#2220)

src/messages/Link.hpp

@@ -20,6 +20,7 @@ public:
         AutoModAllow,
         AutoModDeny,
         OpenAccountsPage,
+        JumpToChannel,
     };
 
     Link();

src/messages/SharedMessageBuilder.cpp

@@ -356,7 +356,7 @@ void SharedMessageBuilder::addTextOrEmoji(const QString &string_)
 void SharedMessageBuilder::appendChannelName()
 {
     QString channelName("#" + this->channel->getName());
-    Link link(Link::Url, this->channel->getName() + "\n" + this->message().id);
+    Link link(Link::JumpToChannel, this->channel->getName());
 
     this->emplace<TextElement>(channelName, MessageElementFlag::ChannelName,
                                MessageColor::System)