Fix report text color. (#8288)

app/javascript/styles/mastodon/components.scss

@@ -4176,6 +4176,10 @@ a.status-card {
     color: $highlight-text-color;
   }
 
+  .status__content p {
+    color: $inverted-text-color;
+  }
+
   @media screen and (max-width: 480px) {
     max-height: 10vh;
   }