Autocompletion for [[ wiki links results in [[[link]] instead of [[link]]

### 🐛 Describe the bug When using autocompletion for wiki links, the plugin incorrectly replaces only part of the existing wiki link syntax. For example, typing `ebéd @ [[Bud` and selecting "Budapest" results in: `ebéd @ [[[Budapest]]` instead of the expected: `ebéd @ [[Budapest]]`. The issue is that only the `"[Bud"` part is replaced, leaving an extra opening bracket. This is because the line contains a Unicode character. ### Config Not relevant. ### Environment ``` NVIM v0.11.3 Build type: RelWithDebInfo LuaJIT 2.1.1741730670 ``` ``` Obsidian.nvim v3.9.0 (unknown commit) Status: • buffer directory: nil • working directory: /home/bmiklos/Dokumentumok/notes Workspaces: ✓ active workspace: Workspace(name='notes', path='/home/bmiklos/Dokumentumok/notes', root='/home/bmiklos/Dokumentumok/notes') Dependencies: ✓ plenary.nvim: b9fd5226c2f76c951fc8ed5923d85e4de065e509 ✓ nvim-cmp: b5311ab3ed9c846b585c0c15b7559be131ec4be9 ✓ telescope.nvim: 6312868392331c9c0f22725041f1ec2bef57c751 Integrations: ✓ picker: TelescopePicker() ✓ completion: enabled (nvim-cmp) ✗ refs, ✗ tags, ✗ new all sources: • nvim_lsp • path • buffer Tools: ✓ rg: ripgrep 14.1.1 Environment: • operating system: Linux Config: • notes_subdir: új ```