Refactor message handling and improve message editor functionality

- Combined TextCommands and SpecialChars into a single vector for streamlined matching in FindMatchingElement.
- Removed unnecessary logging in ParseMessageToData for cleaner error handling.
- Updated FindRealDictionaryEntry function signature for improved readability.
- Enhanced DrawCurrentMessage to strip newline characters from input before parsing.
- Added command parameter input in DrawTextCommands for better user interaction.
- Cleaned up unused ToString methods in MessageData and TextElement structures.

src/app/editor/message/message_preview.h

@@ -20,7 +20,7 @@ struct MessagePreview {
   void DrawTileToPreview(int x, int y, int srcx, int srcy, int pal,
                          int sizex = 1, int sizey = 1);
 
-  void DrawStringToPreview(std::string str);
+  void DrawStringToPreview(const std::string& str);
   void DrawCharacterToPreview(char c);
   void DrawCharacterToPreview(const std::vector<uint8_t>& text);