Additional fixes for pvs-studio report, see #7021
* Rename BasicSaheekiSublimeArtificerTest.java to BasicSaheeliSublimeArtificerTest.java
* S3Uploader.java: Remove redundant null check
* Effects.java: remove redundant check. When in the else part, the lastRule already is guaranteed to not end on a dot
* TableController.java: change warning message when match == null to avoid nullpointer exception
* Reverted already fixed line from, see #7021
Co-authored-by: Oleg Agafonov <jaydi85@gmail.com>
* Added partly valid status for deck legality panel (if all cards are fine but user must add more cards to complete, see #6854);
* Improved legality errors sorting (important errors visible at the top now, e.g. commander's errors);
* AI can't activate or play some things, but you can instruct it to do that;
* insert special command in init.txt to enable it: [@activate opponent ability]
* use cheat button to activate that command;
* you will see all playable abilities for your opponent;
* select any ability to activate (it will be activated by opponent);
* maybe buggy as all other cheat engine commands;
* Added hotkeys to select options (1-9 for choice, SPACE/ENTER for done, ESC for cancel);
* "Up to" modes choose dialog - added "done" button in dialog;
* "Up to" modes choose dialog - fixed that user can't cancel if already selected one mode;
* Added extra info about source object, selected and remaining modes to select, ability number for hotkey;
* Fixed that mode choose dialog doesn't close on cancel (#6199);
* Split cards shows left and right mana cost (in deck editor, hand, etc);
* Adventure cards shows adventure and normal cost (in deck editor, hand, etc);
* Adventure cards shows adventure spell name in deck editor's list;
* Fixed missing loading cursor in deck editor searching;
* improved /fix command to support disconnected/freezed players;
* added chat messages about connection problem with opponents (checks players status every minute);
* reduced timeout before remove disconnected player from waiting game dialog (from 4 to 2 minutes);
* reduced timeout between client's pings (from 60 secs to 20 secs);
