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/helpers/stream_entries_helper.rb

@@ -23,7 +23,7 @@ module StreamEntriesHelper
           safe_join([render(file: Rails.root.join('app', 'javascript', 'images', 'logo.svg')), t('accounts.unfollow')])
         end
       elsif !(account.memorial? || account.moved?)
-        link_to account_follow_path(account), class: 'button logo-button', data: { method: :post } do
+        link_to account_follow_path(account), class: "button logo-button#{account.blocking?(current_account) ? ' disabled' : ''}", data: { method: :post } do
           safe_join([render(file: Rails.root.join('app', 'javascript', 'images', 'logo.svg')), t('accounts.follow')])
         end
       end