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

Conflicts:
- `app/javascript/mastodon/features/compose/components/poll_form.js`:
  Upstream bumped poll option character limit, but we already had
  a higher one, kept ours.
- `app/validators/poll_validator.rb`:
  Upstream bumped poll option character limit, but we already had
  a higher one, kept ours.
- `config/initializers/content_security_policy.rb`:
  Upstream added a rule, the way we compute ours is different, but
  that added rule has been ported.
- `package.json`:
  No real conflict, dependency update. Performed the same update.
- `yarn.lock`:
  No real conflict, dependency update. Performed the same update.

app/javascript/styles/mastodon/components.scss

@@ -1028,13 +1028,11 @@
     }
 
     .display-name {
+      color: $light-text-color;
+
       strong {
         color: $inverted-text-color;
       }
-
-      span {
-        color: $light-text-color;
-      }
     }
 
     .status__content {
@@ -1333,7 +1331,6 @@
     border-radius: 50%;
     overflow: hidden;
     position: relative;
-    cursor: default;
 
     & > div {
       float: left;
@@ -6570,6 +6567,7 @@ noscript {
     padding: 10px;
     padding-top: 12px;
     position: relative;
+    cursor: pointer;
   }
 
   &__unread {