[Manifest] Allow clickthrough in Desktop & On top of any window

Feature Description:

Currently, the extension_window_data.clickthrough manifest flag only supports in game functionalities. we implemented a screen indicator that we would like to show on top of everything and that it will pass clicks/hover through

impact for my app:

low

What is your current pain point?

users that use our screen recorder can’t click/hover on their screen edges

What do you have in mind to solve it?

We would like that the clickthrough flag (or an equivilant flag) will work in desktop too