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/javascript/styles/mastodon/stream_entries.scss

@@ -109,6 +109,23 @@
     }
   }
 
+  &:disabled,
+  &.disabled {
+    svg path:last-child {
+      fill: $ui-primary-color;
+    }
+
+    &:active,
+    &:focus,
+    &:hover {
+      background: $ui-primary-color;
+
+      svg path:last-child {
+        fill: $ui-primary-color;
+      }
+    }
+  }
+
   &.button--destructive {
     &:active,
     &:focus,