Small style fix;
* Changed default order by to createdAt;
* Changed default order direction to asc;
* Moved _id to first column;
Autofocus correct input;
Added clone game logic;
* Added missing error;
* Clean up;
Moved edit player logic to it's own model;
Clean up;
Added existing name checking; (+2 squashed commit)

Squashed commit:

[63b4fd9] Added existing name checking;

[8506fc6] Added existing name checking;
Fixed error flash;