Add snippets for browsers for Android for Cars

[jankleinert]

Migrate 2 snippets on the browsers page.

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• cars/src/main/java/com/example/cars/parked/Browser.kt:26, tag android_cars_parked_browser_device_credential
• cars/src/main/java/com/example/cars/parked/Browser.kt:33, tag android_cars_parked_browser_security_settings

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[gemini-code-assist]

Code Review

This pull request introduces utility functions to check if a device credential is set and to open the system security settings screen. The review feedback identifies a potential runtime exception in the openSecurityScreen function when using a non-Activity context, recommending the addition of the FLAG_ACTIVITY_NEW_TASK flag to the intent.

[kkuan2011]

looks good, thanks Jan! feel free to merge!

[thomasweathers]

LGTM! feel free to merge