Unify profile tabs and lists screens placeholders

[Simek]

Why

Spotted that profile tabs and lists screen placeholders appearance varies.

Also wanted to address an additional border on mobile platforms when refreshing an empty feed.

How

Reuse EmptyState component inside profile tabs feeds and lists screen as a placeholder content. Go through all places which used the component before, to make sure that result after changes matches the appearance on PROD. Preform minor spacing tweaks.

I have also spotted that EmptyState relies on FA icons, with one custom icon introduced. I was wondering if similar exception should be done for "Feeds" and "Lists" placeholder icons to match them with one used in the drawer, but for the sake of changeset simplicity I have left it as-is. Happy to made an update or follow up PR, if you think it would a better for the presentation.

Preview

[haileyok]

Looks great, thank you!

We're working our way through removing FontAwesome, so these icons are fine! Good spot.