Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `README.md`:
  Upstream updated its README, while we have a completely different one.
  Kept our README.
- `app/controllers/concerns/web_app_controller_concern.rb`:
  Conflict because of glitch-soc's theming system.
  Additionally, glitch-soc has different behavior regarding moved accounts.
  Ported some of the changes, but kept our overall behavior.
- `app/javascript/packs/admin.js`:
  Code changes actually applied to `app/javascript/core/admin.js`

spec/lib/feed_manager_spec.rb

@@ -39,6 +39,18 @@ RSpec.describe FeedManager do
         expect(FeedManager.instance.filter?(:home, reblog, bob)).to be false
       end
 
+      it 'returns true for post from account who blocked me' do
+        status = Fabricate(:status, text: 'Hello, World', account: alice)
+        alice.block!(bob)
+        expect(FeedManager.instance.filter?(:home, status, bob)).to be true
+      end
+
+      it 'returns true for post from blocked account' do
+        status = Fabricate(:status, text: 'Hello, World', account: alice)
+        bob.block!(alice)
+        expect(FeedManager.instance.filter?(:home, status, bob)).to be true
+      end
+
       it 'returns true for reblog by followee of blocked account' do
         status = Fabricate(:status, text: 'Hello world', account: jeff)
         reblog = Fabricate(:status, reblog: status, account: alice)