feat: add rich text editor for creating blog and forum posts

- Implemented a rich text editor using Facebook's Lexical framework.
- Added features for text formatting (bold, italic, underline, strikethrough, font size).
- Included image support with drag & drop and paste functionality.
- Created a toolbar for text alignment and formatting options.
- Developed a Create Post page with title input and editor integration.
- Added styles for the editor and post creation interface.
- Implemented image resizing functionality within the editor.
- Registered new commands for inserting images and handling image nodes.
- Provided tips and future enhancements for the editor.

package.json

@@ -10,8 +10,17 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@lexical/clipboard": "^0.37.0",
+    "@lexical/history": "^0.37.0",
+    "@lexical/link": "^0.37.0",
+    "@lexical/list": "^0.37.0",
+    "@lexical/react": "^0.37.0",
+    "@lexical/rich-text": "^0.37.0",
+    "@lexical/selection": "^0.37.0",
+    "@lexical/utils": "^0.37.0",
     "i18next": "^25.5.3",
     "i18next-browser-languagedetector": "^8.2.0",
+    "lexical": "^0.37.0",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
     "react-i18next": "^16.0.0",