Add possibility to manage and view Intranet websites (matomo-org#13473)

* Add possibility to manage and view Intranet websites matomo-org#7724

* more tweaks

* ui tests

* fix some tests

* added missing name

* remove intranet setting, added test for tracking

* fix various tests

* remove test

* Update RequestProcessor.php

* Update en.json

* fix some tests

* do not throw exception if site does not exist

* seeing just now it is fine to trigger exception

* debug error

* log only certain requests

* Update piwik.php

* Update JsProxyTest.php

* trying to fix tests

* remove debug code

* trying to fix tests

Remove user-agent checking code in SessionAuth. (matomo-org#13470)

* Remove user-agent checking code in SessionAuth.

* Fixing test.

* Fixing couple more tests.

🚀 3.6.0 🚀

Add notification when report w/ segment has no data, but segment is u…

…nprocessed (matomo-org#12823)

* When a report has no data, check if it is for an unprocessed segment and display an explanatory notification.

* Remove transient notifications on reporting page change, allow datatable views to add notifications, use to display unprocessed segment message.

* Update changelog.

* Internationalize unprocessed segment message.

* Parse notification divs in dashboardWidget.js when setting widget content.

* Tweak message.

* Change PR to use different approach: throw exception when no archives found and segment is used, then detect exception in new event.

* Update changelog + document new event.

* Unfinished review changes

* more review fixes

* Do not show notification w/ custom segments.

* apply pr review

* Apply review.

* undo escaping since it was not needed & get test to pass

* Different strategy + new test.

* Fix tests.

* Update two expected screenshots.