[Feature Request] Add "Show articles in this feed" option from a given article in general view

[amadeous]

Hello,

First, thank you for the great app!

Motivation: When going through the list of unread articles, I sometimes wonder what other unread articles come from a given feed. I would appreciate a way to go to the list of the related feed.

Some solutions to trigger a change of view:

1. An intuitive way in my opinion would be to add a "Show articles in this feed" option in the menu displayed when long-pressing an article.
2. Adding an action that could be trigger when sliding an article on the right or left (as Starred, Read or opening in browser).

I am willing and have started to implement this feature via the first solution mentioned above as I already use the Starred and Read actions on sliding. Moreover, the other solution seems to me to be less intuitive.

In order to prevent starting a new intent, I would like to update the NewsReaderListActivity. I noticed the functions to refresh the view and already passed the feed id to the NewsDetailImageDialogFragment. However I cannot find a way to find the existing NewsReaderListActivity instance to trigger the refresh after the selection of the option on the NewsDetailImageDialogFragment. Would anyone have an idea on how to do so?

Also, would you have any change to make to the option name or position?

Thank you for your help!