VietTH: Fix issue share scocial has not image because image is too small

app/uploaders/image_uploader.rb

@@ -37,15 +37,15 @@ class ImageUploader < CarrierWave::Uploader::Base
 
   # Create different versions of your uploaded files:
   version :large do
-    process resize_to_fill: [110, 86]
+    process resize_to_fill: [330, 258]
   end
 
   version :medium do
-    process resize_to_fill: [71, 38]
+    process resize_to_fill: [213, 114]
   end
 
   version :small do
-    process resize_to_fill: [51, 32]
+    process resize_to_fill: [153, 96]
   end
 
   # Add a white list of extensions which are allowed to be uploaded.