Fix for incorrect section name in conditional and broken JavaScript for Basin form

[joeraut]

Resolution of two issues I'd experienced:

• Incorrect section being used inside the conditional for determining whether to display the gallery or not in index.html - the length of blog was used instead of gallery. The gallery is not displayed when blog posts aren't present.
• The Basin form JavaScript logic wasn't working on Safari on macOS/iPhone - nothing would happen after 'Send' was pressed. The closing ] bracket was missing within the strings for the following two expressions:
  i=e("input[name=email").value,a=e("input[name=_subject")
  I just inserted the missing ] brackets.

[tomanistor]

Thanks a lot for catching those mistakes and correcting them @joeraut, I appreciate it!

That second error is a bit worrying - I'm not sure why that file wasn't minified correctly.

[tomanistor]

Ah, I found the problem. The contact.js source file contained the error initially:

• https://github.com/tomanistor/osprey/blob/master/static/scripts/src/contact.js#L9-L10

I'll send along a fix for that to prevent this error from popping up again in the future when the minified file is regenerated.