* Added feedback hints when clicking 'check for updates' button in the main menu
* Updated methods to reflect the new changes
* Fixed updater crashing with `u` parameter due to explicit no-parameter screen definition, while renpy expects the (lax) implicit definition
* Fixed server url
* Forbade interactions outside the Updater screen
* Added Automatic Updates preference
* Updated config vars
* Disabled custom GC values for wider testing purposes
* Added update logo fallback in case of unexpected circumstances
* Added CheckUpdates Screen Action Function
* Simplified parts of the updater code and reduced bloat
