added images

Yo ZACK D please review. Things that were added:

Added ability to upload image when you're creating a survey.
If an image is uploaded, it should display when you're both completing a survey and checking the results of a survey you made.
The image should remain fixed on the right side of the container when scrolling through a survey that you're taking or checking the results of.
Surveys should still work as normal without images (I FORGOT TO TEST THIS)