Delete key to blank current cell

[DKMiller71]

I think this would be a good option to blank the current cell without navigation, especially with rebus cells:

Right after the backspace (key == 8) section:

  if (key == 46) { // delete key
    let gridCell = this.currCell()
    if (gridCell && !gridCell.prefill) { 
      this.clearCell(this.currRow, this.currCol)
      this.updateAndSaveState()
    }
    return true
  }

[viresh-ratnakar]

This sounds good to me. Perhaps you can just initiate a Pull Request? If you don't have the time, then I can make the changes, no worries. I just think it would be good to leave a credit-trail.

The following additional would be needed:

• Make the condition be if (gridCell && gridCell.isLight && !gridCell.prefill) {
• Updating the README.md file to describe the feature briefly.
• Updating the tools-msg in-puzzle documentation somewhere here
• Updating the stand-alone file exolve.html
• Adding a minor version change description to CHANGELOG.md

[DKMiller71]

So... first time I've tried updating a github repository that's not mine... hope I did it right.