documents: Ctrl+V with no block open pastes text at the caret

It pasted only pictures; text was dropped without a word.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/documents/document/tests/secondary.rs

@@ -124,3 +124,12 @@ fn delete_image_takes_the_picture_away_in_one_step(cx: &mut TestAppContext) {
     editor.update(cx, |editor, cx| editor.undo(cx));
     assert_eq!(text(&document, cx), source);
 }
+
+#[gpui::test]
+fn text_pastes_at_the_caret_with_no_block_open(cx: &mut TestAppContext) {
+    let (document, cx) = open("First.\n", MarkdownMode::Visual, cx);
+    press_on(0, 0, MouseButton::Right, cx);
+    cx.write_to_clipboard(gpui::ClipboardItem::new_string("New ".into()));
+    cx.simulate_keystrokes("secondary-v");
+    assert_eq!(text(&document, cx), "New First.\n");
+}

src/documents/document/visual.rs

@@ -281,7 +281,13 @@ impl Render for MarkdownDocument {
                     }
                 }))
                 .on_action(cx.listener(|document, _: &Paste, _, cx| {
-                    document.paste_picture(cx);
+                    if document.paste_picture(cx) {
+                        return;
+                    }
+                    match cx.read_from_clipboard().and_then(|item| item.text()) {
+                        Some(text) => _ = document.insert(&text, cx),
+                        None => log::info!("markdown document: nothing to paste"),
+                    }
                 }))
                 .capture_action(cx.listener(|document, _: &forms::Enter, _, cx| {
                     if document.block_newline(cx) {