- Prevent feed access to restricted profiles
- Rework display of restricted profiles with a redirect to the profile/restricted route
- Normalize permission checking with IHandleUserSession->isAuthenticated
- Remove unusable "nocache" parameter in feed module because session isn't initialized
- Reword setting name and description
- moved constants GRAVITY_* from boot.php to Friendica\Model\Item
- also rewrote some array initialization:
From:
````
<?php
$arr = [];
$arr['foo'] = "FOO";
````
To:
````
<?php
$arr['foo'] = "FOO";
````
- added a few type-hints
- Add all dependencies, necessary to run the content (baseUrl, Arguments)
- Encapsulate all POST/GET/DELETE/PATCH/PUT methods as protected methods inside the BaseModule
- Return Module content ONLY per `BaseModule::run()` (including the Hook logic there as well)
