Some improvements to the Homescreen!
* Do not show collections placeholder in home screen on a clean install and subsequently as well.
* Increase the limit for top sites to 160
* Show 20 top sites on the screen at a time, before pagination occurs.
In a followup PR, we need to add state to strictModeManager (the
number of suppressions). This is much simpler to do when this is defined
as a class rather than an object. However, when this is defined as a
class, `resetAfter` needs access to the strictModeManager. Instead of
passing it in as an argument, it made sense to move this function onto
the strictModeManager instead.
Since folks are used to calling:
```
StrictMode.ThreadPolicy.allowThreadDiskReads().resetAfter
```
We're going to have to add a lint check to prevent them from doing that.
This is not the super fancy version yet - since we still need to restore into SessionManager and
haven't fully switched to BrowserStore yet. However AC having knowledge about "undo" and whether
it was performed or not, will help us with features like "recently closed tabs". And once we
can improve "undo", Fenix will get all the nice things automatically.
Requires:
https://github.com/mozilla-mobile/android-components/pull/8449
* Remove search fragment
* Use new folder to search dialog
* Rebase and lint
* Update tests with search dialog nav directions
* Rename interactor to match naming convention. Remove old controller and point everything to the dialog controller.
* Add github actions workflows
* Add github actions for CI
* Fix lint and detekt errors
* Add caching to the github actions
* Add the workflow statuses to the README
* Give the jobs more descriptive names
* Consolidate github actions workflows to a single workflow
* Give the steps meaningful names, save detekt and lint results
* Update Android Components version to 57.0.0.
* Remove feature flag for "View Downloads".
* Update search enginer list from changes by #13452
Co-authored-by: Chenxia Liu <liuche@mozilla.com>