Reduce the number of steps to create a class on a new file

[kblok]

Type: Feature Request

If I write this line:

public MouseTest test1;

I can create the MouseTest class in a new file in one step in VS for Mac.

This same task requires two steps in VS Code:

• Generate class
• Move type to new file

Extension version: 0.4.5
VS Code version: Code - Insiders 1.82.0-insider (Universal) (f125afbc800ec611f5a9ab1333c769832ce424b3, 2023-08-21T05:34:49.942Z)
OS version: Darwin arm64 22.5.0
Modes:

[arunchndr]

Should get covered via dotnet/vscode-csharp#5735. @akhera99 fyi on a code action to add to the test suite.