[Major issue] Spacebar is recorded as entered character on lockbox code

[piggotta]

Spacebar strokes are recorded as entered characters for the lockbox code, but there is no visible indication of the space characters. This makes the lockbox extremely confusing to use, and may lead the user to think that their keystrokes are not being recorded if they initially hit the spacebar.

Suggested improvement: lockbox code should ignore spacebar strokes.