Improve blocked view of profiles (#10491)

* Revert "Fix filtering of favourited_by, reblogged_by, followers and following (#10447)"

This reverts commit 120544067f.

* Revert "Hide blocking accounts from blocked users (#10442)"

This reverts commit 62bafa20a1.

* Improve blocked view of profiles

- Change "You are blocked" to "Profile unavailable"
- Hide following/followers in API when blocked
- Disable follow button and show "Profile unavailable" on public profile as well

app/controllers/api/v1/statuses/favourited_by_accounts_controller.rb

@@ -22,7 +22,6 @@ class Api::V1::Statuses::FavouritedByAccountsController < Api::BaseController
 
   def default_accounts
     Account
-      .without_blocking(current_account)
       .includes(:favourites, :account_stat)
       .references(:favourites)
       .where(favourites: { status_id: @status.id })