Fix game window width/height setting being broken when using Arabic locale Qt displays numbers differently in Arabic. The spinbox window height/width used getText instead of value to get the value, which was wrong because this gets the user-facing string (in arabic) instead of the number to use internally.

void fpcrtl_halt(int num) {
    __coverity_panic__();
}

int fpcrtl_abs(int num) {
    return num >= 0 ? num : -num;
}