<!-- Thanks for your interest in the project. I appreciate bugs filed and PRs submitted! Please fill out this template with all the relevant information so we can understand what's going on and fix the issue. --> * `react-spreadsheet-grid` version: latest * `React` version: latest * `Operating System`: mac os chrome Relevant code or config ```javascript ``` What you did: press keyboard ← when firstcell active What happened:  <!-- Please provide the full error message/screenshots/anything --> no error Problem description: Suggested solution: