feat: Move email attachments from links to file attachments (#11304)

Add ability to send files as attachments instead of links
Fixes: https://github.com/chatwoot/chatwoot/issues/1074


## Changes 
- `emaily_reply` : We will attach the small attachments as attachments
and large ones as links
- `reply_with_summary`, `conversation_transcript`,
`reply_with_out_summary` : We will change the attachment format to the
following instead of the previous `View the attachment here`

```
Attachments:
file_name
file_name2
```


---------

ref: https://github.com/chatwoot/chatwoot/pull/10318/files -> for fixing
: https://github.com/chatwoot/chatwoot/pull/9655#issuecomment-2183962550

---------

Co-authored-by: Marco Marinho <marcomarinho12@gmail.com>
Co-authored-by: Pranav <pranavrajs@gmail.com>

app/views/mailers/conversation_reply_mailer/email_reply.html.erb

@@ -1,8 +1,9 @@
 <% if @message.content %>
   <%= ChatwootMarkdownRenderer.new(@message.content).render_message %>
 <% end %>
-<% if @message.attachments %>
-  <% @message.attachments.each do |attachment| %>
-    attachment [<a href="<%= attachment.file_url %>" _target="blank">click here to view</a>]
+<% if @large_attachments.present? %>
+  <p>Attachments:</p>
+  <% @large_attachments.each do |attachment| %>
+    <p><a href="<%= attachment.file_url %>" target="_blank"><%= attachment.file.filename.to_s %></a></p>
   <% end %>
 <% end %>