fix(android): deprecate preventScreenshots and make dialog more reliable

[ItsChaceD]

Deprecates the preventScreenshots Android config option as FLAG_SECURE is now automatically applied when the privacy screen is enabled. We have to do this since adding and removing the flag dynamically results in a race condition.

This Pr also improves reliability of the privacy screen dialog handling across different navigation modes (gesture navigation, home button, recent apps). The dialog is used in cases where FLAG_SECURE doesn't fully protect content. This happens when using gesture navigation (onPause doesn't reliably trigger), or on newer Android devices where the recent apps menu does not use a snapshot and instead uses a live view fragment which will persist until the OS decides to cache it.

[OS-pedrogustavobilro]

Overall LGTM, tested and seems to be working fine.

I needed to change the dependencies on capacitor framework to ^7.0.0, because it was installing next= 8.0.0-alpha.3 which uses kotlin 2.2.20, but because other modules had 1.9.X it had an error (I had package-lock.json and node_modules cleared to simulate a fresh clone, otherwise you may not get this issue if you had 8.0.0-alpha.2 or older:

lass 'kotlin.Unit' was compiled with an incompatible version of Kotlin. The actual metadata version is 2.2.0, but the compiler version 1.9.0 can read versions up to 2.0.0.

Don't know if this needs to be addressed in this PR, but leaving the remark.

[OS-pedrogustavobilro]

Since this option is now a dud, should we remove this option in v2 of the plugin (next branch). Or what would be the future version this option gets removed?

[ItsChaceD]

Yes I think it makes sense to remove it in v2. I will cherry pick the changes and update to remove this option in the next branch.

[ItsChaceD]

Overall LGTM, tested and seems to be working fine.

I needed to change the dependencies on capacitor framework to ^7.0.0, because it was installing next= 8.0.0-alpha.3 which uses kotlin 2.2.20, but because other modules had 1.9.X it had an error (I had package-lock.json and node_modules cleared to simulate a fresh clone, otherwise you may not get this issue if you had 8.0.0-alpha.2 or older:

lass 'kotlin.Unit' was compiled with an incompatible version of Kotlin. The actual metadata version is 2.2.0, but the compiler version 1.9.0 can read versions up to 2.0.0.

Don't know if this needs to be addressed in this PR, but leaving the remark.

I updated this PR to adjust the dependency versions since it should definitely be included in this release & It wasn't a big deal to make the changes here.