Add message preview functionality and refactor MessageEditor

- Introduced MessagePreview class to handle message rendering and preview logic.
- Updated MessageEditor to utilize MessagePreview for drawing messages and managing font graphics.
- Refactored drawing methods to improve organization and clarity, including the addition of DrawFontAtlas and DrawExpandedMessageSettings.
- Enhanced message handling by integrating new dictionary entry lookup and improved bitmap updates for message previews.
- Cleaned up unused functions and variables to streamline the codebase.

src/app/editor/message/message_preview.h

@@ -0,0 +1,44 @@
+#ifndef YAZEE_MESSAGE_PREVIEW_H_
+#define YAZEE_MESSAGE_PREVIEW_H_
+
+#include <string>
+#include <vector>
+
+#include "app/editor/message/message_data.h"
+
+namespace yaze {
+namespace editor {
+
+constexpr int kCurrentMessageWidth = 172;
+constexpr int kCurrentMessageHeight = 4096;
+
+struct MessagePreview {
+  MessagePreview() {
+    current_preview_data_.resize(kCurrentMessageWidth * kCurrentMessageHeight);
+    std::fill(current_preview_data_.begin(), current_preview_data_.end(), 0);
+  }
+  void DrawTileToPreview(int x, int y, int srcx, int srcy, int pal,
+                         int sizex = 1, int sizey = 1);
+
+  void DrawStringToPreview(std::string str);
+  void DrawCharacterToPreview(char c);
+  void DrawCharacterToPreview(const std::vector<uint8_t>& text);
+
+  void DrawMessagePreview(const MessageData& message);
+
+  bool skip_next = false;
+  int text_line = 0;
+  int text_position = 0;
+  int shown_lines = 0;
+
+  std::array<uint8_t, kWidthArraySize> width_array = {0};
+  std::vector<uint8_t> font_gfx16_data_;
+  std::vector<uint8_t> font_gfx16_data_2_;
+  std::vector<uint8_t> current_preview_data_;
+  std::vector<DictionaryEntry> all_dictionaries_;
+};
+
+}  // namespace editor
+}  // namespace yaze
+
+#endif  // YAZEE_MESSAGE_PREVIEW_H_