* Implement Command class for Command Pattern
Created a base `Command` class to implement the **Command Pattern**. This class provides a skeletal implementation for `execute`, `undo`, and `redo` methods.
**Note:** This class is intended to be subclassed and not instantiated directly.
* Add undo/redo stacks and operations
* Use rotate element command to perform execute/undo/redo operations
* Handle commands executed through events
- Add "command-execution" event listener to execute commands that are not invoked from the same class while adding the command to the undo stack and clearing the redo stack.
* Add and use rotate all command to rotate/redo/undo all elements
* Use command pattern to delete pages
* Use command pattern for page selection
* Use command pattern to move pages up and down
* Use command pattern to remove selected pages
* Use command pattern to perform the splitting operation
* Add undo/redo functionality with filename input exclusion
- Implement undo (Ctrl+Z) and redo (Ctrl+Y) functionality.
- Prevent undo/redo actions when the filename input field is focused.
- Ensures proper handling of undo/redo actions without interfering with text editing.
* Introduce UndoManager for managing undo/redo operations
- Encapsulate undo/redo stacks and operations within UndoManager.
- Simplify handling of undo/redo functionality through a dedicated manager.
* Call execute on splitAllCommand
- Fix a bug that caused split all functionality to not work as execute() wasn't called on splitAllCommand
* Add undo/redo buttons to multi tool
- Add undo/redo buttons to multi tool
- Dispatch an event upon state change (such as changes in the undo/redo stacks) to update the UI accordingly.
* Add undo/redo to translations
* Replace hard-coded "Undo"/"Redo" with translation keys in multi tool
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Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>
