New scene doesn't name the root node in PascalCase

[Yelnats321]

Godot version

4.1.1 stable

System information

N/A

Issue description

The project organization style guide says to name nodes in PascalCase and files in snake_case. If one sets the name of a new scene to be say scene_one, the root node of the scene will also be named scene_one instead of SceneOne.

Although there is a Root Name option in the dialog, it follows convention to automatically rename the root node to PascalCase.

Steps to reproduce

1. Select Create New>Scene... in the FileSystem view in the editor
2. Set the Scene Name to scene_one
3. Press OK
4. Observe that the root node is also named scene_one

Minimal reproduction project

N/A

[jackwilsdon]

Looks like this is a duplicate of #79751, which should be fixed in 4.2 (#79756).

[Sauermann]

Consolidating as a duplicate with #79751.