[Saylinks] Convert all GM Command Saylinks to Silent Saylinks. (#2373)

* [Saylinks] Convert all GM Command Saylinks to Silent Saylinks.
- This cleans up all non-silent GM Command Saylinks that we had before due to the way they worked before. All saylinks like this should be silent now.
- Add source short hand capability for say links with same link as text.

* Defaults to r anyway.

* Spacing.

zone/gm_commands/logs.cpp

@@ -184,11 +184,7 @@ void command_logs(Client *c, const Seperator *sep)
 				next_category_id
 			);
 
-			auto next_list_link = Saylink::Create(
-				next_list_string,
-				false,
-				next_list_string
-			);
+			auto next_list_link = Saylink::Silent(next_list_string, next_list_string);
 
 			c->Message(
 				Chat::White,