Fixed Issue #2348 (WIP) - Initial iteration of added logic for send user to template app gallery

As per the comment thread for this issue between @SteveALee and I, this is my current MVP for this. I intend on turning this function into a more elegant and dynamic "preview window" like menu feature in the near future. Any feedback or guidance on implementing this would be greatly appreciated.
I wasn't aware of an "official URL" from the templates list. This is simply the address I had on my browser bar when I got into the page. Apparently "https://webmaker.org/en-US/gallery" is the exact same from what I'm seeing right now.