They were both in their packages by themselves, which feels unnecessary.
Unfortunately, a utils pkg is discouraged by kotlin but we don't have a
better place for them right now. Maybe an annotations/ pkg for the
latter?

 Added a new option in Private browsing menu to allow or prevent screenshots from being taken while in private mode by adding or removing the FLAG_SECURE flag from the home activity's window.

 This method is called whenever the activity is initialized to account for the browsing mode being changed and whenever the setting from the Private browsing menu is changed.

 The setting is by default set to true (screenshots are allowed to be taken)

I created a series of editor macros to do this with minimal errors (and
to do it quickly!).

* For #220 - Removes feature flag for language picker

* For #220 - Updates Android Components

* For #9687: Refactor onboarding cards to follow app architecture

* For #9687: Update unit test to new controller parameters

enabling/disabling add-on

We discovered in the Fenix metrics errors query [1] that
top_sites_count had a spike in the number of errors. It
seems to be recording a count of 0, which is an invalid value.

[1] https://sql.telemetry.mozilla.org/queries/67107/source#169983

and removed file created by mistake -e

added reason for disabled tests

See added comments for explanation.

This will prevent us from regressing on adding older versions of the
unit test runner.

This disambiguates it from the FirefoxTestApplication used in on-device
tests.

The helpers/ package is created to separate the test support code from
the code under test.

This is how we can apply the new test runner to remove duplication.

This commit was generated programmatically with the following commands:
```
  // Replace test runners with new one.
  find app/src/test -type f -exec gsed -i "s/@RunWith(RobolectricTestRunner::class)/@RunWith(FenixRobolectricTestRunner::class)/" {} +
  find app/src/test -type f -exec gsed -i "s/@RunWith(AndroidJUnit4::class)/@RunWith(FenixRobolectricTestRunner::class)/" {} +

  // Replace imports of old test runners with new one
  find app/src/test -type f -exec gsed -i "s/org.robolectric.RobolectricTestRunner/org.mozilla.fenix.helpers.FenixRobolectricTestRunner/" {} +
  find app/src/test -type f -exec gsed -i "s/androidx.test.ext.junit.runners.AndroidJUnit4/org.mozilla.fenix.helpers.FenixRobolectricTestRunner/" {} +

  // Remove unused imports
  find app/src/test -type f -exec gsed -i "/@Config(application = TestApplication::class)/d" {} +
  find app/src/test -type f -exec gsed -i "/import org.mozilla.fenix.TestApplication/d" {} +
  find app/src/test -type f -exec gsed -i "/import org.robolectric.annotation.Config/d" {} +
```

Where gsed is the GNU version of sed installed via homebrew. After
running these commands, I need to manually clean up the following files:
- FenixRobolectricTestRunner
- LocaleManagerExtensionTest

This class will help us reduce duplication by specifying the
configuration within the test runner rather than each test needing to
specify it itself.

This class is adapted from Firefox for Fire TV:
  https://github.com/mozilla-mobile/firefox-tv/blob/master/app/src/test/java/org/mozilla/tv/firefox/helpers/FirefoxRobolectricTestRunner.kt