* All element on the error panel are now hidden by default (expect for the ``errorTextView``) as they are only optional shown
* Added a method to ensure the above
* This deduplicates a lot of code
* Fixed format of some LoC
* Added new method: ``showAndSetErrorButtonAction``
* Fixed ``showTextError``
* Named buttons more logically: ``errorButtonAction`` -> ``errorActionButton``
It will be shown even when nothing could be loaded not due to a network error, and the user can choose to ignore or report it.
Also improve error reporting arguments
Also completely refactor error activity
Also improve some code here and there