Lsp-based folding disables indentation-based folding. Even though indentation-based folding is non-functional, the crease icon is still displayed in the gutter. This PR fixes this mismatch. Before: <img width="651" height="199" alt="before" src="https://github.com/user-attachments/assets/ebd202e8-9eda-43c9-adbd-767e9802e590" /> After: <img width="666" height="197" alt="after" src="https://github.com/user-attachments/assets/b498e325-cd06-4c51-afdb-fcda4f1a25e6" /> Before you mark this PR as ready for review, make sure that you have: - [x] Added a solid test coverage and/or screenshots from doing manual testing - [x] Done a self-review taking into account security and performance aspects - [x] Aligned any UI changes with the [UI checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) Release Notes: - Removed non-functional folding creases from the gutter. Co-authored-by: ozacod <ozacod@users.noreply.github.com>