Fix(api): Window size and position returning wrong class (fix: #2599)

[sirgallifrey]

fix #2599

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Docs
• New Binding Issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change? (check one)

• Yes. Issue #___
• No

The PR fulfills these requirements:

• When resolving a specific issue, it's referenced in the PR's title (e.g. fix: #xxx[,#xxx], where "xxx" is the issue number)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:

Added the changed apis to Examples/api so that it can be used to test it in the future.
It looks like this:

Curious fact is that, for me innerSize always return the same value for a given monitor. Is that a know bug?
Also I noticed the transparent checkbox does not work, and resizable only works after changing it at least once.

[sirgallifrey]

I still need to do this: "A change file is added if any packages will require a version bump due to this PR per "

[sirgallifrey]

changes file added

[FabianLars]

Can you change the base branch to the next branch?

[sirgallifrey]

I changed through github and now it's showing a lot of changes, I'll try rebasing, if it does not work I might create a new PR to have it clean

[sirgallifrey]

rebase worked like a charm

[lucasfernog]

Amazing work specially the example changes, thanks!