Multiple select should be enabled with support for all context menu action items

[dylankenneally]

Is your feature request related to a problem? Please describe. Problem: it takes far too long to mark a bunch of articles as read, unread, hidden or visible. I.e. too many user clicks are needed.

Example:

1. add the Public Timeline Feed for yang991178 to Fluent
2. mark every 2nd article as Hidden
   • this currently means selecting each article you want to hide, one at a time
   • right clicking and selecting "Hide article"
   • ATTOW there are 30 articles brought into Fluent when I add that feed, with 15 to hide in my example leading to 45 user clicks to hide them

Describe the solution you'd like Suggested: multi-selection of articles & being able to use a single action on all of them.

• Regardless of the users' view preferences (Card, List, Magazine, Compact), there should be a means of selecting an article, and then ⌘ Cmd or Ctrl + click on any other article to add it to the selection.
• Deselection should also be supported.
• When the goes on to use an action like Hide article, Unhide article, Mark as read or Mark as unread, that action should be applied to each item in the selection.

Describe alternatives you've considered Considered the extension of 'Mark below as [read|unread|hidden|unhidden]' - but this doesn't solve the problem unless the user's articles happen to align with the software's sorting schemes, which seems unlikely.

Additional context n/a