Sanitize shorthand emotes throughought the whole message (#28645)

* Rename ChatSanitizationManager to ChatEmoteSanitizationManager

The prior name was kind of confusing as there's a emote one and
then now there's also chat expansion happening in the accent system,
so knowing which I actually need to edit is useful.

So, I just need to keep myself not confused.

* Rename smileyToEmote and remove punctuation duplicates

The name SmileyToEmote is just... Bad.

Plus, I needed to remove the punctuation duplicates as that would
break any kind of regex parsing that I tried.

* Switch to regex from checking end of string

I also changed from System.Globalization to ILocalizationManager.

Writing that regex was definitely an experience.

* Document regex and the manager

* Rename it back

* Simplify regex

Content.Server/Chat/Systems/ChatSystem.cs

@@ -749,6 +749,9 @@ public sealed partial class ChatSystem : SharedChatSystem
         var newMessage = message.Trim();
         newMessage = SanitizeMessageReplaceWords(newMessage);
 
+        // Sanitize it first as it might change the word order
+        _sanitizer.TrySanitizeEmoteShorthands(newMessage, source, out newMessage, out emoteStr);
+
         if (capitalize)
             newMessage = SanitizeMessageCapital(newMessage);
         if (capitalizeTheWordI)
@@ -756,8 +759,6 @@ public sealed partial class ChatSystem : SharedChatSystem
         if (punctuate)
             newMessage = SanitizeMessagePeriod(newMessage);
 
-        _sanitizer.TrySanitizeOutSmilies(newMessage, source, out newMessage, out emoteStr);
-
         return newMessage;
     }