Align Navigation.getLaunchArgs() for Android and iOS

[gosha212]

Describe your idea

Currently the api returns Object for Android and Array for iOS. It makes the developer to write platform specific code.
Find a way to make it same on both platforms.

Motivation

No response

Are you willing to resolve this issue by submitting a Pull Request?

• Yes, I have the time, and I know how to start.
• Yes, I have the time, but I don't know how to start. I would need guidance.
• No, I don’t have the time and I’m okay to wait for the community / maintainers to resolve this issue.