Note that due to limitations with the TextEdit node, horizontal alignment cannot be previewed until the text has been placed in the canvas. This will be fixed once https://github.com/godotengine/godot-proposals/issues/7352 is implemented.
Icons made by @Erevoid.
* Initial port of the text tool to Godot 4
* Change font (WIP)
* Add antialiasing option and remove some old unneeded lines
* Remove outline code
* Add horizontal alignment and update the text edit font size
* Improve the text edit
* Don't activate tools while typing
* Format
* Give input priority to the text edit so the key X and shortcuts such as control-z work in the text edit
* Add style settings for bold and italic
* Fix text going blank when changing font
* Use `font.draw_multiline_string()`
* Change the move behavior of the text tool, add confirm and cancel buttons
* Compress images on undo/redo
* Fix text position
