feat: add desciption to category and sub category

routes/api.php

@@ -222,6 +222,8 @@
     Route::post('/media/{id}/note', [MediaController::class, 'storeNote']);
 
     // Media categories
+    // Explicit POST update so an icon image can be uploaded (multipart can't ride a PUT).
+    Route::post('categories/{id}', [CategoryController::class, 'update']);
     Route::apiResource('categories', CategoryController::class);
 
     // Media sub categories