LoL 1.0.5.1: Fix for window top outside of display region

This is a small fix for a reported problem where the game window opens with a size larger than the display size, causing the top of the window to be inaccessible, and making it impossible to access menus. The fix simply ensures that the top left edge of the window is a bit within the top left edge of the display. If the bottom right is not within the display on start-up, the in-game menus can then be accessed to change the game window size.

This is only released for Windows - if anyone encounters the problem on Linux, I can make an update for that as well. Otherwise the plan is to include the fix for Linux in the next regular update.