Experiments will not be used before GA and are thus being removed
for performance wins.

Change required for removing description from search suggestion. Implemented
in AC (https://github.com/mozilla-mobile/android-components/pull/5890)

This is required for making the new A-C snapshot work.

This patch refactors the widget layouts so that we can reuse the app icon and do not have to have
another logo resource with different constraints. This will also make it easier to update the
branding in #8277 and #8278.

Reusing the same taskAffinity makes sure that we are launching into a potentially already
existing task from Fennec. Without that we may spawn a new task and will show up twice
in "Recent apps" - with one entry still having a fennec screenshot.

Reduced the margin start value of the progress bar in order to leave more space between it and the
text.

Moved hardcoded margin values into dimens resources.

For https://github.com/mozilla-mobile/android-components/issues/5886.

With this patch we will dismiss the "migration completed" notification once the users
clicks on the button in the migration activity.

Changed the order of the whitelisted migrations in order to respect the UI specifications.

Now using linked hash map instead of hash map for the whitelisted migrations so we can preserve the
order of the steps upon status changing in the migration process.

Re-apply the change for #4456.
Keep `total_uri_count` as a CounterMetricType and let Glean manage it's
persistence and reset time (resets with each metrics ping sent).

This was added as a duplicate to an already existing `total_uri_count`
CounterMetricType in #4456.