[Bug]: `ViewStateType` not correctly reflecting the object's actual properties

[rubenthoms]

When looking at the ViewStateType object returned from getCameraPosition, I get additional properties that are not reflected in the type. It would be nice to adjust the type accordingly.

[hkfb]

@rubenthoms do you know if this is a new regression? I'm pretty sure this is working fine in our apps.

[rubenthoms]

@hkfb I am not sure. I just tested it yesterday and it didn't work. Our use-case is to persist the view state in a database. When a user opens the app again, they should see exactly what they saw when leaving it. This is not working. Also, we might want to take a look at the ViewStateType as it seems incomplete and could be described a bit better. How are you handling this in your apps?

[rubenthoms]

@hkfb I investigated a bit more and I found an issue on our side. Sorry for sounding the alarm. However, I think we could still improve the typing a bit.

[rubenthoms]

@hkfb I changed the title and reduced the issue description to the typing issue.

[danielsantiago1002]

I've submitted a PR that attempts to resolve the issue; I look forward to any feedback.
#2667