Mac/iPad: dashboard

[Dejal]

@samuelclay wrote in a comment in #1247:

I've been using the macOS app a ton and it's been a great experience. One change I'd like to see is to match the up-to-date experience from the web. We have a configurable dashboard on the web that has real-time updated "widgets". Could we make a new "Dashboard" top level folder, same as on the web, with the story titles in groups matching the web? I publish those lists on /reader/feeds/:

"dashboard_rivers": [
    {
        "river_id": "river:",
        "river_side": "left",
        "river_order": 0
    },
    {
        "river_id": "river:infrequent",
        "river_side": "left",
        "river_order": 1
    },
    {
        "river_id": "river:global",
        "river_side": "left",
        "river_order": 2
    }
],

They should show 5 stories in the standard story titles format, and they should reload every 5 minutes (add a random 1-5 minutes per request so they don't all refresh together at once, some people can have dozens of rivers). I'd like to see this on both iPad and macOS, so I can leave the screen open and watch the news come in.

Bonus points for left vs right lists. And extra bonus points for single column, double column, and two horizontal columns (left "column" on top row, right "column" on bottom row).

I like this idea. Just the three river feeds, or are the What's New and NewsBlur Stats etc panes available too, to fully replicate the experience? It'd be a nice feature either way.

[samuelclay]

We don't have APIs for what's new and statistics, so let's start with the rivers. Check dashboard_rivers_view.js for details on which feeds to pull and what to hide.