Updated GDScript code from dynamic type to static type

[SriramAnanth2912]

Refactored GDScript code for full static typing compliance

In the docs, the GDScript code is dynamically type casted as var foo = 12.
I did static type casting for the GDScript code as var foo : int = 12.

Completely refactored the code as mentioned above and also added necessary statements explaining the static types used.

[SriramAnanth2912]

This PR is a small contribution related to #6295.

[SriramAnanth2912]

Thank you for mentioning the mistakes. Will not repeat such style-related issues.

[SriramAnanth2912]

There is an issue with the Turning Around part of this page for the readers.
Issue is described here.
since it is a minor issue, I didn't raise it as a separate issue.
There are two solutions proposed there.
Please suggest which one is more relevant here.
Both need additional text descriptions in the page

[SriramAnanth2912]

All suggested changes resolved, please re-review

Resolved

[Calinou]

Code looks good to me.

However, I'm not sure if we should add type hints only on this particular parge of the step-by-step tutorial. We should make sure all the step-by-step tutorials (script, 2D, 3D) feature type hints for consistency, as inconsistencies in this regard are likely to confuse beginners. See this issue: #11037

I still agree we should move all tutorials to use type hints in the long run, but we should make sure to do this in chunks that look logical to readers.

[SriramAnanth2912]

Thank you for adding the labels. I’ll proceed with the remaining pages in the getting-started section and look forward to further contributions from the community.