Update Android Keyboard Cache MASTG-KNOW-0055 and MASTG-BEST-0019 to cover Compose SecureTextField

[Jolken]

MASTG-KNOW-0055 shows OutlinedTextField with PasswordVisualTransformation() + KeyboardOptions as the Compose example. It should instead recommend SecureTextField, the purpose-built Compose composable for password input.

Please update MASTG-KNOW-0055 and MASTG-BEST-0019 to replace the current Compose example with SecureTextField (hides input by default, disables cut/copy, textObfuscationMode options)

Reference: https://developer.android.com/develop/ui/compose/text/user-input?textfield=state-based