Update todo.md

Author: Avaray

docs/todo.md

@@ -14,15 +14,16 @@ This document tracks planned features and reported bugs for the **SEN (Secure En
 - [ ] **Theme Editor Hover Colors**: Add ability to customize the background color of menu buttons when hovered.
 - [ ] **Theme System Refactoring**: Refactor the color system to allow customization of more editor components.
 - [x] **Whitespace Symbols Color**: Add ability to customize the color of whitespace symbols (spaces, tabs, returns) within the theme editor.
-- [ ] **History Capacity**: Increase the maximum allowed file history entries from 100 to 1000.
-- [ ] **Global History Limit**: Add a global (default) setting to control the maximum number of history entries retained per file.
-- [ ] **Line Limit**: Implement a 9999 line limit per file/entry to maintain performance and keep the focus on note-taking rather than large databases.
+- [x] **History Capacity**: Increase the maximum allowed file history entries from 100 to 1000.
+- [x] **Global History Limit**: Add a global (default) setting to control the maximum number of history entries retained per file.
+- [x] **Line Limit**: Implement a 9999 line limit per file/entry to maintain performance and keep the focus on note-taking rather than large databases.
 - [ ] **History View Modes (Simple / Detailed)**: Add a toggle to switch between a Detailed view (current) and a Simple view (clean, one-line-per-entry list with exact date/time).
 - [ ] **Logo & App Icon**: Create a new professional logo for SEN and replace the current application icon.
-- [ ] **Persistent Panel Widths**: Make the Debug, History, Settings, and Theme Editor panels remember their widths when resized by the user, similar to the File Tree.
-- [ ] **Font Selection Confirmation**: Allow confirming UI and Editor font selection with the Enter key.
+- [x] **Persistent Panel Widths**: Make the Debug, History, Settings, and Theme Editor panels remember their widths when resized by the user, similar to the File Tree.
+- [x] **Font Selection Confirmation**: Allow confirming UI and Editor font selection with the Enter key.
 - [x] **Quick Font Scaling**: Add support for Ctrl+Scroll and Ctrl++/Ctrl+- to quickly resize editor font.
 - [ ] **Line Height Adjustment**: Add setting to adjust the vertical spacing (line height) between rows in the text editor.
+- [ ] **Customizable Text Cursor**: Add option to change the text editor cursor shape (e.g., vertical bar, block, underscore).
 - [ ] **Auto-Backup on Save**: Add option to automatically copy encrypted .sen files to multiple backup folders on save.
 - [x] **Additional Keyboard Shortcuts**: Implement missing shortcuts, such as for "Open Directory".
 - [x] **Smart Directory Opening**: Prevent save prompts when opening a directory in the file tree, as it doesn't close or modify the current file.