Don't paint insertion point if text is immutable (#1523)

egui/src/widgets/text_edit/builder.rs

@@ -579,6 +579,8 @@ impl<'t> TextEdit<'t> {
                     // We paint the cursor on top of the text, in case
                     // the text galley has backgrounds (as e.g. `code` snippets in markup do).
                     paint_cursor_selection(ui, &painter, text_draw_pos, &galley, &cursor_range);
+
+                    if text.is_mutable() {
                         let cursor_pos = paint_cursor_end(
                             ui,
                             row_height,
@@ -592,7 +594,7 @@ impl<'t> TextEdit<'t> {
                             ui.scroll_to_rect(cursor_pos, None); // keep cursor in view
                         }
 
-                    if interactive && text.is_mutable() {
+                        if interactive {
                             // egui_web uses `text_cursor_pos` when showing IME,
                             // so only set it when text is editable and visible!
                             ui.ctx().output().text_cursor_pos = Some(cursor_pos.left_top());
@@ -600,6 +602,7 @@ impl<'t> TextEdit<'t> {
                     }
                 }
             }
+        }
 
         state.clone().store(ui.ctx(), id);