* Add support for login link
https://mobile.element.io/element?account_provider=example.org&login_hint=mxid:@alice:example.org
* Update screenshots
* Reduce code duplication
* Add test on OnBoardingPresenter
* Fix tool
* Ignore login parameter if user is not allowed to connect to the provided server.
* Improve tests.
* Cleanup
* Revert change on Project.xml.
* Add documentation
* Improve LoginHelper
* Rename LoginFlow to LoginMode
Move LoginFlow to package io.element.android.features.login.impl.login
Rename some implementation of LoginMode
Rename LoginFlowView to LoginModeView
* Change launchMode of MainActivity from `singleTop` to `singleTask`
Using launchMode singleTask to avoid multiple instances of the Activity when the app is already open. This is important for incoming share and for opening the application from a mobile.element.io link.
Closes#4074
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Co-authored-by: ElementBot <android@element.io>
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