fix: append new line after file upload placeholder in editor

src/components/PostEditor/PostContent.tsx

@@ -104,7 +104,7 @@ export default function PostContent({
         <div className="flex gap-2 items-center">
           <Uploader
             onUploadSuccess={({ url }) => {
-              textareaRef.current?.appendText(url)
+              textareaRef.current?.appendText(url + '\n')
             }}
             onUploadingChange={(uploading) =>
               setUploadingFiles((prev) => (uploading ? prev + 1 : prev - 1))

src/components/PostEditor/PostTextarea/ClipboardAndDropHandler.ts

@@ -99,10 +99,8 @@ async function uploadFile(view: EditorView, file: File, options: ClipboardAndDro
   options.onUploadStart?.(file)
 
   const placeholder = `[Uploading "${name}"...]`
-  const uploadingNode = view.state.schema.text(placeholder)
-  const paragraph = view.state.schema.nodes.paragraph.create()
-  let tr = view.state.tr.replaceSelectionWith(uploadingNode)
-  tr = tr.insert(tr.selection.to, paragraph)
+  const uploadingNode = view.state.schema.text(placeholder + '\n')
+  const tr = view.state.tr.replaceSelectionWith(uploadingNode)
   view.dispatch(tr)
 
   mediaUpload