Better handling of formatting in pasted text

ts/components/conversation/MessageTextRenderer.tsx

@@ -15,7 +15,6 @@ import type {
   RangeNode,
 } from '../../types/BodyRange';
 import {
-  SPOILER_REPLACEMENT,
   BodyRange,
   insertRange,
   collapseRangeTree,
@@ -215,12 +214,6 @@ function renderNode({
               }
         }
       >
-        <span
-          aria-hidden
-          className="MessageTextRenderer__formatting--spoiler--copy-target"
-        >
-          {SPOILER_REPLACEMENT}
-        </span>
         <span aria-hidden>{content}</span>
       </span>
     );

ts/components/conversation/TimelineDateHeader.tsx

@@ -29,15 +29,15 @@ export function TimelineDateHeader({
   }, [i18n, timestamp]);
 
   return (
-    <Time
+    <div
       className={classNames(
         'TimelineDateHeader',
         `TimelineDateHeader--${floating ? 'floating' : 'inline'}`
       )}
-      dateOnly
-      timestamp={timestamp}
     >
-      {text}
-    </Time>
+      <Time dateOnly timestamp={timestamp}>
+        {text}
+      </Time>
+    </div>
   );
 }