moved new js into assets + added basic styling

[bpiper91]

• noticed the newly added script file was in root directory, so I moved it to assets/script.js
• added bulma cdn to links in index.html and added some bulma class names to html and js files
• added some css to limit the size of fox images on endgame page
• added a call to foxPicQuery on page load because that fixed an error where the first question would load an undefined URL on a correct answer (not sure why it works, but it seems like it does)
• loading a random fox photo on the home page wasn't working, so I gave up and hard coded it