Previously it did the opposite of what it was supposed to; when checked, it'd
turn block linking on, and when unchecked, it'd turn it off.
Also update JITIL's block linking disabling in debug mode to match the behavior
of the regular JIT.
Lessens the restrictions on the searching in the code view.
Now typing out the full 8 digit hex number isn't needed. For example, you don't need to type 000000FF to go to FF, you just literally type FF.
Also makes JumpToAddress a boolean function to remain consistent with the DSP code view.
This will also change the address search box to have a red background if
either an invalid hex number is given, or if it's longer than 8 characters
